Huawei E3276 Cat4 150Mbps USB Modem is the World"s first LTE Cat4 Stick, and allows speeds of over 100 Mbit/s download - precisely 150 MBit/s on LTE FDD network. The UMTS network can achieve up to 84 Mbps download speed due to DC-HSPA+ technology. Specifications: Model:E3276S-920 Form Factor: USB dongle modern Network: LTE, DC-HSPA+,HSPA+,HSUPA,HSDPA,UMTS,EDGE,GPRS Frequency Support: * 4G Band 38/40 (TDD 2300/2600MHz) (Not in USA) * 3G DC-HSPA+ 900/2100MHz * GSM 850/900/1800/1900MHz LTE TDD: DL 112Mbps@20M bandwidth (Uplink-downlink configuration2,1:3) DC-HSPA+: DL up to 43.2Mbps-UL5.76Mbps EDGE: UP to 236.8kbps Download up to 118kbps upload GPRS: up to 85.6kbps Download, up to 42.8kbps Upload USB 2.0 High Speed Dimensions: 92mm x 32mm x 14mm Weight: 35g OS: Windows XP/Vista/7, Linux, Mac OS. Package Included: 1x Huawei USB Mobile Broadband