Modem GSM 3G/HSDPA Sierra 881U
| Interface to PC | USB 2.0 High Speed Data Transfer |
| 2G GPRS Support | Yes with Quad Band EDGE/GPRS : 850, 900, 1800, 1900 MHz |
| 2.5G EDGE Support | Yes with Quad Band EDGE/GPRS : 850, 900, 1800, 1900 MHz |
| 3G UMTS Support | Yes with Tri Band UMTS/HSDPA : 850, 1900, 2100 MHz |
| 3.5G HSDPA Support | Yes with Tri Band UMTS/HSDPA : 850, 1900, 2100 MHz |
| 3.75G HSUPA Support | Not Available |
| 4G LTE Support | Up to 156.3 Kbps |
| GPRS/2G Downlink Speed | Up to 236.8 Kbps |
| EDGE/2.5G Downlink Speed | Up to 384 Kbps |
| UMTS/3G Downlink Speed | Up to 3.6 Mpbs |
| HSDPA/3.5G Downlink Speed | Not Available |
| HSPA+/3.75G Downlink Speed | Available |
| LTE/4G Downlink Speed | Available (By Software) |
| SMS Support | Standard 6 PIN SIM card interface |
| Voice Call Support | Not Available |
| SIM Card Support | Available |
| MicroSD Slot | Miniature Internal Antenna Connection (Support External Antenna) |
| Zero CD Technology | Yes with GPS Module Integrated |
| Antenna System | Yes |
| GPS Module Support | Supported OS : Windows® Vista, XP, 2000, and Mac OS X |
| LED Indicator | Internal battery that supplements the power from the USB port when extra power is required |
| Alnect Care Warranty | 30 Hari |
| Standard Warranty | 30 Hari |
| Manufacturer website | http://www.sierrawireless.com/ |
