HUAWEI E3276s-150:

4G LTE FDD 800/2600MHz 

3G UMTS 900/1900/2100MHz

GSM 850/900/1800/1900MHz

 HUAWEI E3276s-151: (Vodafone K5007 and Megafon M150-1)

 4G LTE FDD (DD800/900/1800/2100/2600MHz)

3G UMTS 900/1900/2100MHz 

 GSM 850/900/1800/1900MHz

 Network bands:

 LTE FDD: 800/900/1800/2100/2600 Mhz
 UMTS: 2100/AWS/900/1900
 GSM: 850/900/1800/1900

 LTE Cat4 DL at up to 150Mbps 

 LTE UL up to 50Mbps 
 External Antenna Interface, Receive Diversity

 USB 2.0 High Speed

 SIM/USIM card: standard 6-pin SIM card interface
 Micro SD Card Slot
 Dimensions: 92mm x 32mm x 14mm
 Weight: 30g
 OS: Windows XP/Vista/7, Linux, Mac OS.

With the sharing dock AF23, HUAWEI E3276 4G USB modem could work as 4G LTE WiFi Router to support more than 5 users to access internet. So if you already have HUAWEI E3276 150Mbps USB dongle and you want to have a 4G Portable Router, it's a good idea to buy a HUAWEI AF23 sharing dock