For a list of all currently documented Ralink chipsets with specifications, see Ralink.
Manuf/OEM/ODM Wistron NeWeb
FCC approval date: 19 December 2011
(Est.) release date: 13 February 2012
UPC: 036725237360 (UPC DB, On eBay)
Country of manuf.: China
Connector: Male A
Form factor tags: dongle
This device uses 2x SiGe SE2580L power amplifiers.
"48DNUR13.SGB" appears to be silkscreened on the board.