Acer WLAN-G-US1

Overview
Device entry page on modem-help.co.uk
 * Downloads on modem-help

The manual on modem-help seems to indicate that this device is manufactured by Procomp (w/ a shown 00:30:95 [Procomp] OUI).. It may be a Procomp PW8630ZR (ZD1211 + RF2959).