Corega CG-WLR300NM

Overview
"48RNRA10.0GA" and "2009/09/08" is silkscreened on the board in the images provided by Mns below. The SSed date code (presumably) on the PCB is 1003 (2010, week 3 / Jan 2010 [??]).
 * The 802.11bgn radio (AR9283) is using two Microsemi LX5511 (LX5511LQ) InGaP HBT 2.3-2.5GHz Power Amplifier ICs (they appear to be marked "MSC", "5511, "9498"..). (LX5511 datasheet)

Vendor links
On Amazon.co.jp
 * ASIN: B002WEE2JC, Date added: 2009-11-13, Shipping weight: 640g

Pictures
Mns Images