Alpha Networks WMC-N02

Overview
From a card pulled out of a Western Digital My Net N900 Central (2TB)...
 * "8WMCN02..2A1G" is silkscreened on the bottom of the card.
 * "11B/G/N pci-e mini card" and "REV-A1" is silkscreened on the card on the top (underneath the RF shielding).
 * This device is using 3x Richwave RTC6691 PAs.
 * The PCI ID used by the card is 168c:0030 (168c:3112). This is the same ID used by the sister module, the Alpha Networks WMC-ND02.
 * The OUI hard-coded into the card is 00:03:7F.

I don't know if this module was used in any other devices other than the N900 Central or marketed to other companies, but, if so, the details will probably differ.

Linux command-line-tool-derived info from the N900 Central Card
lspci -nnv 05:00.0 Network controller [0280]: Qualcomm Atheros AR93xx Wireless Network Adapter [168c:0030] (rev 01) Subsystem: Qualcomm Atheros AR93xx Wireless Network Adapter [168c:3112] Physical Slot: 1 Flags: bus master, fast devsel, latency 0, IRQ 19 Memory at f1d00000 (64-bit, non-prefetchable) [size=128K] [virtual] Expansion ROM at f1d20000 [disabled] [size=64K] Capabilities: Kernel driver in use: ath9k Kernel modules: ath9k