See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
Per the product page, this is a 1T1R dongle. The drivers provided by MSI are RTL81xxSU drivers, so this device is presumed to use RTL8188SU.. as well as the default 8188SU USB ID (no custom USB IDs are found in the driver).
Additional specifications, per the product page, follow...
- Dimensions (L x W x H): 1.30" x 0.67" x 0.28"
- Weight: 0.20 oz5.671 g