diff --git a/.changeset/tidy-slots-close.md b/.changeset/tidy-slots-close.md
new file mode 100644
index 000000000..0acbc7d5b
--- /dev/null
+++ b/.changeset/tidy-slots-close.md
@@ -0,0 +1,5 @@
+---
+"catalog": patch
+---
+
+Remove storage media card slots (SD, microSD) from hardware io, 44 entries across 44 files. Card slots hold media, not cables, so the setup graph cannot use them, the same reasoning as Bluetooth and Wi-Fi. New validation error E120 blocks reintroducing them by name while leaving option and expansion card bays legal.
diff --git a/CLAUDE.md b/CLAUDE.md
index 355203cd1..bb994506e 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -172,6 +172,14 @@ ports — the app doesn't support them in the setup graph. Mention them in
 absent from the io type vocabulary, so such entries fail validation (E117).
 (`rf` antenna jacks on wireless mic systems are real ports and stay.)
 
+**No storage media slot io entries.** SD, microSD, CompactFlash, Memory Stick
+and kin hold media, not cables, so the setup graph can do nothing with them —
+the same reasoning as Bluetooth/Wi-Fi. An io entry whose name identifies a
+storage slot fails validation (E120). Mention the slot in
+`description`/`details`/`specs` instead. Option and expansion card bays
+(Dante/MADI option cards) accept cards that present real connectors, so those
+stay legal with `connection: card-slot`.
+
 **Passive speakers use `speaker-level`, not `line`.** Passive-loudspeaker inputs
 (speakON, binding-post, banana, euroblock, barrier/spring terminals) carry
 amplified signals — set `type: speaker-level`. `line` is for low-voltage
diff --git a/data/hardware/1010-music-bento.yaml b/data/hardware/1010-music-bento.yaml
index e12cd08f4..0b5e9096a 100644
--- a/data/hardware/1010-music-bento.yaml
+++ b/data/hardware/1010-music-bento.yaml
@@ -150,14 +150,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: HUgOxSwJ
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Right
 versions:
   - name: 1.4.7
     releaseDate: 2026-03-16
diff --git a/data/hardware/1010-music-blackbox-2.yaml b/data/hardware/1010-music-blackbox-2.yaml
index 707bf77db..1d5587232 100644
--- a/data/hardware/1010-music-blackbox-2.yaml
+++ b/data/hardware/1010-music-blackbox-2.yaml
@@ -113,14 +113,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Top
-  - key: qkWgD1C5
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Right
 videos:
   - provider: youtube
     videoId: 1a33_40c0CQ
diff --git a/data/hardware/1010-music-blackbox.yaml b/data/hardware/1010-music-blackbox.yaml
index 5dee7bb28..59594cf2c 100644
--- a/data/hardware/1010-music-blackbox.yaml
+++ b/data/hardware/1010-music-blackbox.yaml
@@ -129,14 +129,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Top
-  - key: mrL8BUoR
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Top
 versions:
   - name: Firmware 3.1.2
     description: Adds multisample import using filename to set root note and
diff --git a/data/hardware/1010-music-bluebox.yaml b/data/hardware/1010-music-bluebox.yaml
index 210283a91..7db5f8ac2 100644
--- a/data/hardware/1010-music-bluebox.yaml
+++ b/data/hardware/1010-music-bluebox.yaml
@@ -141,14 +141,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Bottom
-  - key: jyo1aa0G
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Bottom
 links:
   - url: https://forum.1010music.com/forum/products/bluebox-compact-digital-mixer-recorder/learning-material-bluebox
     type: resource
diff --git a/data/hardware/1010-music-fireball.yaml b/data/hardware/1010-music-fireball.yaml
index 283436e31..04fed2d7c 100644
--- a/data/hardware/1010-music-fireball.yaml
+++ b/data/hardware/1010-music-fireball.yaml
@@ -85,14 +85,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Bottom
-  - key: IO93ZeEi
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Bottom
 links:
   - url: https://1010music.com/wp-content/uploads/2022/01/Nanobox-Fireball-Quick-Start-Guide-Jan-2022.pdf
     type: resource
diff --git a/data/hardware/1010-music-lemondrop.yaml b/data/hardware/1010-music-lemondrop.yaml
index 44655432c..ff6ca45a8 100644
--- a/data/hardware/1010-music-lemondrop.yaml
+++ b/data/hardware/1010-music-lemondrop.yaml
@@ -86,14 +86,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Bottom
-  - key: O3r1nMqE
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Bottom
 links:
   - url: https://1010music.com/wp-content/uploads/2022/01/Nanobox-Lemondrop-Quick-Start-Guide-Jan-2022.pdf
     type: resource
diff --git a/data/hardware/1010-music-nanobox-razzmatazz.yaml b/data/hardware/1010-music-nanobox-razzmatazz.yaml
index ee9a7e72c..6bbe3a62e 100644
--- a/data/hardware/1010-music-nanobox-razzmatazz.yaml
+++ b/data/hardware/1010-music-nanobox-razzmatazz.yaml
@@ -91,14 +91,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Bottom
-  - key: hUess2vW
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Bottom
 links:
   - url: https://1010music.com/wp-content/uploads/2022/10/Nanobox-Razzmatazz-Quick-Start-Guide-2022-09-19a.pdf
     type: resource
diff --git a/data/hardware/1010-music-tangerine.yaml b/data/hardware/1010-music-tangerine.yaml
index 37a98d92c..534085543 100644
--- a/data/hardware/1010-music-tangerine.yaml
+++ b/data/hardware/1010-music-tangerine.yaml
@@ -82,14 +82,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Bottom
-  - key: Eg95avj3
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Bottom
 versions:
   - name: 1.2.28
 links:
diff --git a/data/hardware/denon-dj-prime-2.yaml b/data/hardware/denon-dj-prime-2.yaml
index 528730d32..7beaa295d 100644
--- a/data/hardware/denon-dj-prime-2.yaml
+++ b/data/hardware/denon-dj-prime-2.yaml
@@ -172,14 +172,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: YHVhOFDG
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: vsYbPFFw
     name: Ethernet
     signalFlow: bidirectional
diff --git a/data/hardware/denon-dj-prime-4.yaml b/data/hardware/denon-dj-prime-4.yaml
index 428eab157..bc437e8f2 100644
--- a/data/hardware/denon-dj-prime-4.yaml
+++ b/data/hardware/denon-dj-prime-4.yaml
@@ -226,14 +226,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: YH1oRgqE
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: xFjvHEgD
     name: Ethernet Link
     signalFlow: bidirectional
diff --git a/data/hardware/denon-dj-prime-go-plus.yaml b/data/hardware/denon-dj-prime-go-plus.yaml
index 6ff97a751..9dd256c1b 100644
--- a/data/hardware/denon-dj-prime-go-plus.yaml
+++ b/data/hardware/denon-dj-prime-go-plus.yaml
@@ -141,14 +141,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: jQQDkWad
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
   - key: oVIKylFg
     name: Power Input (DC)
     signalFlow: input
diff --git a/data/hardware/denon-dj-prime-go.yaml b/data/hardware/denon-dj-prime-go.yaml
index bfc9bf818..b2cc6520a 100644
--- a/data/hardware/denon-dj-prime-go.yaml
+++ b/data/hardware/denon-dj-prime-go.yaml
@@ -143,14 +143,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: bIhCIMlp
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
   - key: G3CcpVUg
     name: Ethernet (Network)
     signalFlow: bidirectional
diff --git a/data/hardware/denon-dj-sc5000-prime.yaml b/data/hardware/denon-dj-sc5000-prime.yaml
index cb430571a..e7df81211 100644
--- a/data/hardware/denon-dj-sc5000-prime.yaml
+++ b/data/hardware/denon-dj-sc5000-prime.yaml
@@ -157,14 +157,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: 0QneVNlV
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: S8NCg0gK
     name: Ethernet Link Port
     signalFlow: bidirectional
diff --git a/data/hardware/denon-dj-sc5000m-prime.yaml b/data/hardware/denon-dj-sc5000m-prime.yaml
index 2ba858649..579266101 100644
--- a/data/hardware/denon-dj-sc5000m-prime.yaml
+++ b/data/hardware/denon-dj-sc5000m-prime.yaml
@@ -133,14 +133,6 @@ io:
     connection: usb-a
     maxConnections: 1
     position: Top
-  - key: 1Fw58nY5
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: card-slot
-    maxConnections: 1
-    position: Top
 links:
   - type: support
     title: Downloads
diff --git a/data/hardware/denon-dj-sc6000m-prime.yaml b/data/hardware/denon-dj-sc6000m-prime.yaml
index a891ecf3a..a7100d7e8 100644
--- a/data/hardware/denon-dj-sc6000m-prime.yaml
+++ b/data/hardware/denon-dj-sc6000m-prime.yaml
@@ -129,14 +129,6 @@ io:
     connection: usb-a
     maxConnections: 1
     position: Top
-  - key: Ci7GtnYW
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: card-slot
-    maxConnections: 1
-    position: Top
   - key: 9DpJ8Iuk
     name: Remote Start Input
     signalFlow: input
diff --git a/data/hardware/intellijel-multigrain.yaml b/data/hardware/intellijel-multigrain.yaml
index fb8b73aba..62c31540a 100644
--- a/data/hardware/intellijel-multigrain.yaml
+++ b/data/hardware/intellijel-multigrain.yaml
@@ -148,14 +148,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Top
-  - key: 7y4Mzf4n
-    name: SD Card
-    signalFlow: bidirectional
-    category: digital
-    type: proprietary
-    connection: card-slot
-    maxConnections: 1
-    position: Top
 links:
   - url: https://intellijel.com/downloads/manuals/multigrain_manual_v1.4_2026.05.01.pdf
     type: resource
diff --git a/data/hardware/marantz-cd-50n.yaml b/data/hardware/marantz-cd-50n.yaml
index 16e685312..80e68a80e 100644
--- a/data/hardware/marantz-cd-50n.yaml
+++ b/data/hardware/marantz-cd-50n.yaml
@@ -104,14 +104,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: 8Fzgzn8p
-    name: USB Memory Stick Input
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: usb-a
-    maxConnections: 1
-    position: Left
   - key: 6N1eUBKp
     name: Ethernet
     signalFlow: bidirectional
diff --git a/data/hardware/midas-dp48.yaml b/data/hardware/midas-dp48.yaml
index 137da2319..15795b6fa 100644
--- a/data/hardware/midas-dp48.yaml
+++ b/data/hardware/midas-dp48.yaml
@@ -66,14 +66,6 @@ io:
     connection: 1/4-inch
     maxConnections: 1
     position: Right
-  - key: 57NSOebW
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: Pauk6Im0
     name: Stereo Ambience Microphone (built-in)
     signalFlow: input
diff --git a/data/hardware/numark-mixstream-pro-go.yaml b/data/hardware/numark-mixstream-pro-go.yaml
index f0d8eee9c..bf6f21715 100644
--- a/data/hardware/numark-mixstream-pro-go.yaml
+++ b/data/hardware/numark-mixstream-pro-go.yaml
@@ -115,14 +115,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Top
-  - key: PAyEWMge
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: HWUqIOON
     name: Power Adapter Input
     signalFlow: input
diff --git a/data/hardware/numark-mixstream-pro-plus.yaml b/data/hardware/numark-mixstream-pro-plus.yaml
index bc7241f24..6c778f6a1 100644
--- a/data/hardware/numark-mixstream-pro-plus.yaml
+++ b/data/hardware/numark-mixstream-pro-plus.yaml
@@ -100,14 +100,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: WZ1e3XoL
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: QyxRuZ0z
     name: DC Power Input
     signalFlow: input
diff --git a/data/hardware/numark-mixstream-pro.yaml b/data/hardware/numark-mixstream-pro.yaml
index c7c089abd..1d5828043 100644
--- a/data/hardware/numark-mixstream-pro.yaml
+++ b/data/hardware/numark-mixstream-pro.yaml
@@ -126,14 +126,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: JVpF9Foc
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: bdeL2N8h
     name: DC Power Input
     signalFlow: input
diff --git a/data/hardware/tascam-bd-mp1mkii.yaml b/data/hardware/tascam-bd-mp1mkii.yaml
index 3db0b4efb..0832e4610 100644
--- a/data/hardware/tascam-bd-mp1mkii.yaml
+++ b/data/hardware/tascam-bd-mp1mkii.yaml
@@ -157,14 +157,6 @@ io:
     connection: usb-a
     maxConnections: 1
     position: Right
-  - key: 6FXbjd2b
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: QEKkJ35S
     name: RS-232C Control
     signalFlow: bidirectional
diff --git a/data/hardware/tascam-bd-mp4k.yaml b/data/hardware/tascam-bd-mp4k.yaml
index f0761c4ea..c2e4b7d22 100644
--- a/data/hardware/tascam-bd-mp4k.yaml
+++ b/data/hardware/tascam-bd-mp4k.yaml
@@ -147,14 +147,6 @@ io:
     connection: rca
     maxConnections: 1
     position: Right
-  - key: 9hQI3EEM
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: POU465CR
     name: USB 3.0 Type-A
     signalFlow: input
diff --git a/data/hardware/tascam-cd-400u.yaml b/data/hardware/tascam-cd-400u.yaml
index e1530537c..13927d84f 100644
--- a/data/hardware/tascam-cd-400u.yaml
+++ b/data/hardware/tascam-cd-400u.yaml
@@ -35,14 +35,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Left
-  - key: vdEgngc6
-    name: SD Card Slot
-    signalFlow: input
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: CYwnLRnd
     name: USB Type-A (Media)
     signalFlow: input
diff --git a/data/hardware/tascam-dp-006.yaml b/data/hardware/tascam-dp-006.yaml
index 6bcefc322..d3c0af29d 100644
--- a/data/hardware/tascam-dp-006.yaml
+++ b/data/hardware/tascam-dp-006.yaml
@@ -80,14 +80,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: HDsF5QAu
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 159
     currency: USD
diff --git a/data/hardware/tascam-dp-24sd.yaml b/data/hardware/tascam-dp-24sd.yaml
index 8f5353182..6557fe6ce 100644
--- a/data/hardware/tascam-dp-24sd.yaml
+++ b/data/hardware/tascam-dp-24sd.yaml
@@ -152,14 +152,6 @@ io:
     connection: 1/8-inch
     maxConnections: 1
     position: Right
-  - key: R2QirQfC
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: YRUE65oP
     name: AC Power
     signalFlow: input
diff --git a/data/hardware/tascam-dr-05x.yaml b/data/hardware/tascam-dr-05x.yaml
index 0e5f61b64..d485c2e59 100644
--- a/data/hardware/tascam-dr-05x.yaml
+++ b/data/hardware/tascam-dr-05x.yaml
@@ -57,11 +57,3 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: NWaqbjDY
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
diff --git a/data/hardware/tascam-dr-05xp.yaml b/data/hardware/tascam-dr-05xp.yaml
index 477d9dc3d..6dca0c423 100644
--- a/data/hardware/tascam-dr-05xp.yaml
+++ b/data/hardware/tascam-dr-05xp.yaml
@@ -57,14 +57,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: 82OPjJan
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 102
     currency: USD
diff --git a/data/hardware/tascam-dr-07x.yaml b/data/hardware/tascam-dr-07x.yaml
index 44bc7c19e..d6759054d 100644
--- a/data/hardware/tascam-dr-07x.yaml
+++ b/data/hardware/tascam-dr-07x.yaml
@@ -57,14 +57,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: HJ3ITvPs
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 119
     currency: USD
diff --git a/data/hardware/tascam-dr-07xp.yaml b/data/hardware/tascam-dr-07xp.yaml
index 53e14cfdb..3a59e7fba 100644
--- a/data/hardware/tascam-dr-07xp.yaml
+++ b/data/hardware/tascam-dr-07xp.yaml
@@ -57,14 +57,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: GLIPTSO4
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 148
     currency: USD
diff --git a/data/hardware/tascam-dr-10l_pro.yaml b/data/hardware/tascam-dr-10l_pro.yaml
index 2cba41b91..5e3c3ed35 100644
--- a/data/hardware/tascam-dr-10l_pro.yaml
+++ b/data/hardware/tascam-dr-10l_pro.yaml
@@ -47,14 +47,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: mVH5zw85
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 157
     currency: USD
diff --git a/data/hardware/tascam-dr-10x.yaml b/data/hardware/tascam-dr-10x.yaml
index bc1187a0b..55149eeba 100644
--- a/data/hardware/tascam-dr-10x.yaml
+++ b/data/hardware/tascam-dr-10x.yaml
@@ -47,14 +47,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: G7WBFzxU
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
 prices:
   - amount: 127
     currency: USD
diff --git a/data/hardware/tascam-dr-40x.yaml b/data/hardware/tascam-dr-40x.yaml
index 0187bc899..e84d9e949 100644
--- a/data/hardware/tascam-dr-40x.yaml
+++ b/data/hardware/tascam-dr-40x.yaml
@@ -65,14 +65,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Bottom
-  - key: fPTK0Wjz
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 219
     currency: USD
diff --git a/data/hardware/tascam-dr-40xp.yaml b/data/hardware/tascam-dr-40xp.yaml
index 4ec8496de..f3fb8d5a5 100644
--- a/data/hardware/tascam-dr-40xp.yaml
+++ b/data/hardware/tascam-dr-40xp.yaml
@@ -64,14 +64,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: 6qaxZUEb
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
 prices:
   - amount: 259
     currency: USD
diff --git a/data/hardware/tascam-fr-av2.yaml b/data/hardware/tascam-fr-av2.yaml
index 60f2f91b3..7a8109f7f 100644
--- a/data/hardware/tascam-fr-av2.yaml
+++ b/data/hardware/tascam-fr-av2.yaml
@@ -82,14 +82,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Right
-  - key: lPphekG8
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Bottom
 prices:
   - amount: 399
     currency: USD
diff --git a/data/hardware/tascam-mixcast_4.yaml b/data/hardware/tascam-mixcast_4.yaml
index a04afbfc9..9f92cca35 100644
--- a/data/hardware/tascam-mixcast_4.yaml
+++ b/data/hardware/tascam-mixcast_4.yaml
@@ -145,14 +145,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Right
-  - key: EoS20In8
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
   - key: flc1NvBu
     name: DC Power
     signalFlow: input
diff --git a/data/hardware/tascam-model_12.yaml b/data/hardware/tascam-model_12.yaml
index b0c8fad77..fc94768ef 100644
--- a/data/hardware/tascam-model_12.yaml
+++ b/data/hardware/tascam-model_12.yaml
@@ -228,14 +228,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Right
-  - key: g05xtN79
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: en25nceh
     name: MIDI In
     signalFlow: input
diff --git a/data/hardware/tascam-model_16.yaml b/data/hardware/tascam-model_16.yaml
index 8ec6900eb..dfbe3c28b 100644
--- a/data/hardware/tascam-model_16.yaml
+++ b/data/hardware/tascam-model_16.yaml
@@ -278,14 +278,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: AXPTLuJ7
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: lJa92t5a
     name: Footswitch
     signalFlow: input
diff --git a/data/hardware/tascam-model_24.yaml b/data/hardware/tascam-model_24.yaml
index 0c15cd2af..348b45f56 100644
--- a/data/hardware/tascam-model_24.yaml
+++ b/data/hardware/tascam-model_24.yaml
@@ -400,14 +400,6 @@ io:
     connection: usb-b
     maxConnections: 1
     position: Right
-  - key: qqzrB0vN
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: ab8hrIVP
     name: AC Power
     signalFlow: input
diff --git a/data/hardware/tascam-model_2400.yaml b/data/hardware/tascam-model_2400.yaml
index 6bac168d3..0db19510c 100644
--- a/data/hardware/tascam-model_2400.yaml
+++ b/data/hardware/tascam-model_2400.yaml
@@ -517,14 +517,6 @@ io:
     connection: built-in
     maxConnections: 1
     position: Right
-  - key: aw8f2wpD
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Top
   - key: DPRsuBYa
     name: Footswitch
     signalFlow: input
diff --git a/data/hardware/tascam-portacapture_x6.yaml b/data/hardware/tascam-portacapture_x6.yaml
index 53146d3a1..55e11ddc2 100644
--- a/data/hardware/tascam-portacapture_x6.yaml
+++ b/data/hardware/tascam-portacapture_x6.yaml
@@ -91,14 +91,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: w9mWthTj
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 279
     currency: USD
diff --git a/data/hardware/tascam-portacapture_x8.yaml b/data/hardware/tascam-portacapture_x8.yaml
index bac1aa0f7..be3082c68 100644
--- a/data/hardware/tascam-portacapture_x8.yaml
+++ b/data/hardware/tascam-portacapture_x8.yaml
@@ -123,14 +123,6 @@ io:
     connection: usb-c
     maxConnections: 1
     position: Bottom
-  - key: lQd2e5yI
-    name: microSD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Right
 prices:
   - amount: 379
     currency: USD
diff --git a/data/hardware/tascam-vs-r264.yaml b/data/hardware/tascam-vs-r264.yaml
index e50a21ed9..b012ba7df 100644
--- a/data/hardware/tascam-vs-r264.yaml
+++ b/data/hardware/tascam-vs-r264.yaml
@@ -91,14 +91,6 @@ io:
     connection: usb-a
     maxConnections: 1
     position: Right
-  - key: wo3baYi0
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: UujU3aJd
     name: DC Power Input
     signalFlow: input
diff --git a/data/hardware/tascam-vs-r265.yaml b/data/hardware/tascam-vs-r265.yaml
index 6229b58f5..597099caa 100644
--- a/data/hardware/tascam-vs-r265.yaml
+++ b/data/hardware/tascam-vs-r265.yaml
@@ -104,14 +104,6 @@ io:
     connection: usb-a
     maxConnections: 1
     position: Left
-  - key: 9ohuKlAT
-    name: SD Card Slot
-    signalFlow: bidirectional
-    category: digital
-    type: usb
-    connection: built-in
-    maxConnections: 1
-    position: Left
   - key: gDRNciQZ
     name: DC Power Input
     signalFlow: input
diff --git a/docs/VALIDATION_ERRORS.md b/docs/VALIDATION_ERRORS.md
index db65a4172..39a4971bd 100644
--- a/docs/VALIDATION_ERRORS.md
+++ b/docs/VALIDATION_ERRORS.md
@@ -357,6 +357,25 @@ means. Delete the key instead.
 
 ---
 
+### E120: Storage Media Slot as IO
+
+An io entry's name identifies a storage media slot (SD, microSD, SDHC/SDXC,
+CompactFlash, Memory Stick, SmartMedia, xD).
+
+Storage slots hold media, not cables, so the setup graph can do nothing with
+them: no cable ever runs from a card slot to another device. This is the same
+reasoning that keeps `bluetooth` and `wifi` out of the io type vocabulary.
+Mention the slot in `description`, `details`, or `specs` instead.
+
+Deliberately narrow: option and expansion card bays (Dante/MADI option cards,
+console expansion slots) accept cards that present their own connectors, so
+"Option Card Slot" and similar names stay legal, as do `connection: card-slot`
+entries for those bays.
+
+**Fix:** Delete the io entry and note the slot in the entry's prose fields.
+
+---
+
 ### E199: Validation Error
 
 A generic validation error that doesn't fall into a more specific category.
diff --git a/scripts/__tests__/io-heuristics.test.ts b/scripts/__tests__/io-heuristics.test.ts
index b1dd20d2c..adab7ba20 100644
--- a/scripts/__tests__/io-heuristics.test.ts
+++ b/scripts/__tests__/io-heuristics.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { isIoCombineCandidate } from "../lib/io-heuristics.js";
+import { isIoCombineCandidate, STORAGE_MEDIA_SLOT } from "../lib/io-heuristics.js";
 
 describe("isIoCombineCandidate", () => {
   it("flags several single jacks collapsed into one entry", () => {
@@ -41,3 +41,45 @@ describe("isIoCombineCandidate", () => {
     ).toBe(true);
   });
 });
+
+describe("STORAGE_MEDIA_SLOT", () => {
+  const storage = [
+    "SD Card Slot",
+    "microSD Card Slot",
+    "Micro SD Card - Flashed",
+    "SD Card",
+    "SDHC Card Slot",
+    "CompactFlash Slot",
+    "Memory Stick Slot",
+    // Slot-only spellings: the media token alone marks these as storage.
+    "SD Slot",
+    "microSD Slot",
+    "SDXC Slot",
+    "xD Slot",
+    "CF Slot",
+  ];
+  for (const name of storage) {
+    it(`matches storage slot '${name}'`, () => {
+      expect(STORAGE_MEDIA_SLOT.test(name)).toBe(true);
+    });
+  }
+
+  // Option bays present real connectors, mic names contain "cardioid", and
+  // "Soundcard"/"DSD" must not trip the sd stem.
+  const legal = [
+    "Option Card Slot",
+    "64x64 I/O Option Card Slot",
+    "Expansion Card Slot (DN32-USB/ADAT/MADI/DANTE)",
+    "Thunderbolt 3 Option Card",
+    "UAD-2 PCIe Accelerator Cards",
+    "USB 2.0 (20 Channel 24-bit/96kHz Soundcard)",
+    "4011 Cardioid Microphone",
+    "Detachable Hypercardioid Boom Microphone Input",
+    "DSD Card",
+  ];
+  for (const name of legal) {
+    it(`leaves '${name}' alone`, () => {
+      expect(STORAGE_MEDIA_SLOT.test(name)).toBe(false);
+    });
+  }
+});
diff --git a/scripts/lib/error-codes.ts b/scripts/lib/error-codes.ts
index 0b3d9dd26..b98135c3b 100644
--- a/scripts/lib/error-codes.ts
+++ b/scripts/lib/error-codes.ts
@@ -40,6 +40,7 @@ export enum ValidationErrorCode {
   E117_INVALID_IO_TYPE = "E117",
   E118_NAME_ARTIFACT = "E118",
   E119_INVALID_CAPABILITY = "E119",
+  E120_STORAGE_MEDIA_SLOT = "E120",
   E199_VALIDATION_ERROR = "E199",
 
   // Reference errors (E2xx)
@@ -205,6 +206,10 @@ const ERROR_INFO: Record<ValidationErrorCode, ErrorInfoEntry> = {
     title: "Invalid capability",
     anchor: "e119-invalid-capability",
   },
+  [ValidationErrorCode.E120_STORAGE_MEDIA_SLOT]: {
+    title: "Storage media slot as IO",
+    anchor: "e120-storage-media-slot-as-io",
+  },
   [ValidationErrorCode.E199_VALIDATION_ERROR]: {
     title: "Validation error",
     anchor: "e199-validation-error",
diff --git a/scripts/lib/io-heuristics.ts b/scripts/lib/io-heuristics.ts
index eadc061c1..22855a4a2 100644
--- a/scripts/lib/io-heuristics.ts
+++ b/scripts/lib/io-heuristics.ts
@@ -54,3 +54,18 @@ export function isIoCombineCandidate(io: IoLike, owner?: IoOwner): boolean {
   if (owner?.primaryCategory && AGGREGATE_CATEGORIES.has(owner.primaryCategory)) return false;
   return true;
 }
+
+/**
+ * Storage-media slots (SD, microSD, CompactFlash, Memory Stick and kin) are
+ * not connectable ports: they hold media, not cables, so the setup graph can
+ * do nothing with them — the same reasoning that keeps Bluetooth and Wi-Fi
+ * out of the io type vocabulary. Validation hard-fails an io entry whose
+ * name matches (E120); the slot belongs in description/details/specs.
+ *
+ * Deliberately narrow: option and expansion card bays (Dante/MADI option
+ * cards, 500-series style bays) accept cards that PRESENT connectors, so
+ * "Option Card Slot" and friends must not match, and neither may "cardioid"
+ * in microphone names.
+ */
+export const STORAGE_MEDIA_SLOT =
+  /\b(?:micro\s*)?sd(?:hc|xc)?[\s-]*(?:card|slot)|\bmemory\s*(?:card|stick)|compact[\s-]*flash|\bcf[\s-]*(?:card|slot)|smart[\s-]*media|\bxd[\s-]*(?:picture[\s-]*)?(?:card|slot)/i;
diff --git a/scripts/validate.ts b/scripts/validate.ts
index 5ac65de3d..bd32aae74 100644
--- a/scripts/validate.ts
+++ b/scripts/validate.ts
@@ -12,7 +12,7 @@ import { parse as parseYaml } from "yaml";
 import { z } from "zod";
 import { looksLikeAcronymName } from "./lib/acronym-exclusions.js";
 import { getDocsUrl, ValidationErrorCode } from "./lib/error-codes.js";
-import { isIoCombineCandidate } from "./lib/io-heuristics.js";
+import { isIoCombineCandidate, STORAGE_MEDIA_SLOT } from "./lib/io-heuristics.js";
 import { findDuplicateIoKeys, IO_KEY_PATTERN } from "./lib/io-keys.js";
 import {
   findNameArtifacts,
@@ -216,7 +216,12 @@ function getErrorCodeFromZodIssue(issue: {
     }
   }
 
-  // IO field errors
+  // IO field errors. E120 is raised only by the io name check, so it is
+  // keyed to the name path: a connectorDetail VALUE that happens to contain
+  // the phrase must still classify as E115, not E120.
+  if (path.endsWith(".name") && message.includes("storage media slot")) {
+    return ValidationErrorCode.E120_STORAGE_MEDIA_SLOT;
+  }
   if (message.includes("invalid io signal flow")) {
     return ValidationErrorCode.E111_INVALID_IO_SIGNAL_FLOW;
   }
@@ -432,7 +437,20 @@ const IOSchema = z
       .string()
       .regex(IO_KEY_PATTERN, "IO key must be exactly 8 alphanumeric characters")
       .optional(),
-    name: z.string(),
+    name: z.string().check((ctx) => {
+      if (STORAGE_MEDIA_SLOT.test(ctx.value)) {
+        ctx.issues.push({
+          code: "custom",
+          message:
+            `Storage media slot '${ctx.value}' is not a connectable port. ` +
+            `Memory card slots hold media, not cables, so the setup graph cannot ` +
+            `use them (same reasoning as Bluetooth/Wi-Fi). Mention the slot in ` +
+            `description/details/specs instead. Option and expansion card bays ` +
+            `that accept I/O cards stay legal.`,
+          input: ctx.value,
+        });
+      }
+    }),
     signalFlow: z.string().check((ctx) => {
       if (!VALID_IO_SIGNAL_FLOWS.has(ctx.value)) {
         const suggestion = findClosestMatch(ctx.value, VALID_IO_SIGNAL_FLOWS);