ALFA Network AWUS051NH v2
For a list of all currently documented Ralink chipsets with specifications, see Ralink.
This YouTube video shows the v2 board. The board seems to be a parts reduced AWUS052NH board, per the silkscreened text.
- 1327 is the silkscreened date code. The label affixed to it indicates it keeps the 00:C0:CA OUI.
As the entire set of second chain parts seem to be omitted and there is no visible antenna, it's assumed to be a single-chain+stream card.