-Micro SD Card Slot
-Downlink to 7.2M,uplink to 2.1M
-GSM/GPRS/EDGE (850/900/1800/1900MHz)

100% unlock  HuaWei UMG1691, 7.2Mbps 3g wireless modem 

-Downlink to 7.2M,uplink to 2.1M

-Plug & Play

-GSM/GPRS/EDGE (850/900/1800/1900MHz)

- HSDPA/UMTS (2100/850MHz)
- Receive diversity (2100/850MHz)

- Micro SD Card Slot

-Support 7.2Mbps HSDPA services
-Support SMS services
-Support data statistics
-Support Windows 2000, Windows XP, Windows Vista,7 and Mac Operating Systems