FCC approval date: 17 December 2007
Country of manuf.: Taiwan
Connector: Female Mini-B
Form factor tags: corded (modular) adapter
2.4GHz Power Amplifier IC;Richwave;RTC6682;934, 6682, A702;1;
For a list of all currently documented Ralink chipsets with specifications, see Ralink.
Looks to be a Senao / EnGenius EUB-9701 EXT2. All data based on that assumption.