Rosewill RNX-N600UBE v1

Overview
"0207B", "ROHS", and a date code of 1209 (presumably Mar. 2012) is silkscreened on the board of a production unit (M86's unit).
 * Two Skyworks / SiGe SE2595L FEMs are used. There is no RF shielding.

This device appears to be a Zioncom WL0207.
 * W6RRNX-N600UBE is the FCC ID on the label, but is not applicable to this version of the device.

This device has an alternative model of RNWD-11008.

 A newer revision of the device has been released (late 2013) using RT5572.
 * W6RRNX-N600UBE passed through the FCC on 03/19/2013. The photos and manual show the device with RT5572.

Pictures
Retail Images 

Additional specifications
This information is per Rosewill's manual.