For a list of all currently documented Intersil chipsets with specifications, see Intersil.
Manuf/OEM/ODM PESI WU21Cg
FCC approval date: 11 November 2004
UPC: 007892868053 (UPC DB, On eBay)
Country of manuf.: China
Connector: Female Mini-B
Form factor tags: corded (modular) adapter
WI1 chip1: Intersil ISL3887
WI1 chip2: Intersil ISL3686B
"WU21Cg" and "41713-80801-A" is silkscreened on the board. PESI is clearly the manufacturer.
Wi-Fi Certified (alt.) (as of 12/17/2004)