AmbiCom WL1100B-USB

Overview
The driver (available via archive.org) for this device references two USB IDs. They are as follows.. The device descriptor for both devices is Wireless LAN USB Adapter.
 * 03eb:7603 (default Atmel AT76C503A + HFA3861 ID)
 * 0cde:0001 (Z-Com XI-750 ID)

A later version driver references only the 0cde:0001 ID with the device descriptor of..
 * AmbiCom Wireless LAN USB Adapter

This device is clearly a Z-Com XI-750.

Links of Interest
Product page (via archive.org) Datasheet (via archive.org)