TP-LINK TL-WN821N v3

300Mbps Wireless N USB Adapter

Product Page

Drivers

"2052500288" and "Rev: 1.1" is silkscreened on the board in the FCC photos. Version with both chips on one side.

On http://jiushu.blog.51cto.com (w/ internal images)
 * "2052000270" is silkscreened on the board. The "Rev:" <...> text is covered by a sticker. Version with chips on different sides.
 * The device is using AR7010-AL1A and AR9287-BL1A.
 * The casing plastic is ABS+PC (resin code 7).

Receiver sensitivity
 * 270M: -68dBm w/ 10% PER
 * 130M: -68dBm w/ 10% PER
 * 108M: -68dBm w/ 10% PER
 * 54M: -68dBm w/ 10% PER
 * 11M: -85dBm w/ 8% PER
 * 6M: -88dBm w/ 10% PER
 * 1M: -90dBm w/ 8% PER

Possible 6C:FD:B9 (Proware) OUI