Sierra 312U Specifications

*Network
  - Dual Carrier HSPA+/UMTS/HSPA/EDGE
  - Frequency Bands WCDMA 850/1900/2100 MHz
  - EDGE/GPRS/GSM 850/900/1800/1900 MHz
* Max Downlink Speed 42 Mbps
* Operating Temperature 0 to 45° Celsius
* Storage Temperature -40 to 85° Celsius
* Form Factor USB
* System Requirements: USB Port (2.0 recommended)
* Disk Space Requirements: 150 MB
* Antenna Diversity Support: Yes
* Approvals Compliance
  * ROHS Compliant
  * A-Tick
  * Microsoft WHQL
* Optional External Antenna: Yes
* Additional Features: MicroSD Slot
* Receive Equalizer: Yes
* Weight: 55 g
* Volume 36 cc
* Device Dimensions: 50 mm (L) x 64 mm (W) x 11 mm (H)
* Operating System Support Windows 7/Windows Vista/Windows XP/Mac OS X/Linux