diff --git a/konami/io.md b/konami/io.md
index f98de57..a2e3cef 100644
--- a/konami/io.md
+++ b/konami/io.md
@@ -1,34 +1,99 @@
+# Interfaces
+
 ## APC
 
+* Product: TOPS APC CARD
+
 ## P2IO
 
 * Product: PWB0000359443 / PWB110526140000
-* Connector: USB
+* Connector: USB (host), JAMMA (cab)
 
 ## P3IO
 
 * Product: PWB112263690000
+* Connectors: JAMMA (cab), custom (COM1, cab), TTL (COM2, cab), 2x TTL (COM3-4, cab), RGB (cab), 2x RCA (cab), secplug (cab)
 
 ## P4IO
 
 * Product: 115710800000 (blue board) / PWB112840930000 (green board)
 * Codename: "Cerel"
-* ACIO name: "BMPU"
+* Connectors: USB (host), serial (host), serial (cab), custom x4 (cab)
 
 ## USBIO2
 
 * Product: PWB1113692080000
+* Connectors: USB
 
 ## KFCA
 
 * Product: PWB114435950000
 * Codename: "Nadeshiko"
-* ACIO name: "KFCA"
+* Firmware families:
+  - ACIO name: "KFCA" (ID: 0x09060000) \[KFC/PAN\]
+    * Known versions: 1.0.5 / Aug 30 2011 13:23:47 / PAN
+  - ACIO name: "RVOL" (ID: 0x09060001) \[PIX\]
 
 ## BIO2
 
 * Product: PWB116784030000
 * Codename: "xenolithus"
 * Firmware families:
-  - BI2A
+  - BI2A (ID: 0x0D060000)
   - BI2X
+* Connectors: USB
+
+# Devices
+
+## BMPU
+
+## DDRS
+
+DDR led spike. Also used in Reflec Beat.
+
+* ACIO name: "DDRS" (ID: 0x05010000)
+
+## H44B
+
+jubeat (H44) panel.
+
+## HBHI
+
+## HDXS
+
+DDR front panel and speaker lights.
+
+* ACIO name: "HDXS" / "HDXB" (ID: 0x04020000)
+
+## HGTH
+
+## ICC
+
+e-AMUSEMENT pass (IC card) reader. Is really two types of devices: the old slot card reader, and the new NFC card reader.
+
+* Product:
+  - FRWF-K01A / FRWF-K02B [slot reader]
+  - Secure-Tech NS-ARW13T-KNM2 (case) / ARW13T-RS01B-CSW01 (PCB) [NFC reader]
+* Firmware families:
+  - ACIO name: "ICCA" (ID: 0x03000000) [slot reader]
+    * Known versions: 1.1.0 / Oct 26 2005 13:55:03 / FDH/GDJ
+  - ACIO name: "ICCB" (ID: 0x03000000) [NFC reader]
+    * Known versions: 1.5.1 / Apr 12 2010 09:29:00 / KFC/LDJ
+  - ACIO name: "ICCC" [NFC reader]
+    * Known versions: 1.7.3 / Oct 05 2012 20:26:53 / L44, 1.7.4 / Feb 27 2013 16:44:51 / PIX/PAN
+
+## J32D
+
+## KLPA
+
+## MDXF
+
+## NDDB
+
+## PANB
+
+Nostalgia (PAN) panel.
+
+## PJEC
+
+## PJEI