Sitecom WL-105b

Overview
OEM Gemtek WX5520A (WX5520A_V02)

The DD-WRT supported devices table states the FCC ID for this device is MXF-A910910AB. This FCC ID has a BCM4301+BCM2051 card and an Atheros AR5000 card for 802.11a. This access point appears to use a BCM4306+BCM2050 card.

Links of Interest
On the OpenWrt wiki

Pictures
'User Images' from OpenWrt