See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
This is a dual-radio card. This device is Marvell based - presumably using 88W8764.
- The transmitter modular approval letter states the device was tested in a Marvell Access Point (Model: AP-8764DR1), which seems to support this..
"Actiontec" and "TwinTower-1A" is silkscreened on the wireless module board in the FCC photos.