See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
TP-LINK TL-WN821N v3
"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).
- 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