PESI WP222M rev A1

This device uses the ShareWave (later bought out by Cirrus Logic) Bodega chipset. The cards support 802.11b and ShareWave's proprietary Whitecap2 protocol. 

The Windows 98SE/ME/2000/XP driver (rescued from Zayetech's website via the WayBack Machine) can be downloaded here.

"1000WP222M01-A1" is silkscreened on the board in the FCC photos.

It is highly probable that this card is RF3000 + RF2948B based (same as the C2 revision).