1 files changed, 17 insertions, 2 deletions

diff --git a/converter/ibm4704_usb/README.md b/converter/ibm4704_usb/README.md
index 6541dd6d0..ce9e34ebf 100644
--- a/converter/ibm4704_usb/README.md
+++ b/converter/ibm4704_usb/README.md
@@ -5,8 +5,23 @@ This firmware converts IBM 4704 keyboard protocol to USB HID.
 Keyboard initialization process takes a few seconds at start up. During that you will hear buzzer from the keyboard. **You need to plug USB cable after hooking up your keyboard to the converter.**
 
 
-4704 Connector
---------------
+Keyboard models
+---------------
+IBM capacitive switch models:
+    6019273 Model 100 50-key (grid layout)      http://kishy.dyndns.org/?p=977
+    6019284 Model 200 62-key Alpha(60% layout)  http://kishy.dyndns.org/?p=894
+    6019303 Model 300 77-key Expanded Alpha     http://kbtalking.cool3c.com/article/23272
+    6020218 Model 400 107-key Full key          http://kishy.dyndns.org/?p=980
+
+Alps switch(vintage Green) models:
+    5954339 Japanese 102-key    http://deskthority.net/post87127.html#p87127
+    6112883 Japanese 102-key    http://geekhack.org/index.php?topic=52888.msg1194489#msg1194489
+    6112884 Japanese 102-key    http://geekhack.org/index.php?topic=50437.msg1193047#msg1193047
+    6341739 Chinese 102-key     http://geekhack.org/index.php?topic=52888.msg1176566#msg1176566
+
+
+Connector
+---------
 Keyboard Plug from front:
 
     DSUB-9