Support:
HSPA+ (High Speed Packet Access Plus)
HSUPA (High Speed Uplink Packet Access)
HSDPA (High Speed Downlink Packet Access)
WCDMA (Wideband Code Division Multiple Access)
GSM (Global System for Mobile Communications)
GPRS (General Packet Radio Service (System)
EDGE (Enhanced Data Rates for Global Evolution)

Huawei B683
The B683 mainly supports the following features:

1.Multiple network environments. 
Supports HSPA+/HSUPA/HSDPA/WCDMA/GSM/GPRS/EDGE
2.High speed experience. 
Supports data services of maximum rate of HSPA+ (DL28Mbit/s; UL5.76Mbit/s), HSPA (DL 7.2Mbit/s; UL5.76Mbit/s), (384kbit/s WCDMA,236.8kbit/s )EDGE, and (85.6kbit/s) GPRS
3.802.11b/g/n
4.WPS
5.Built-in DHCP Server, DNS RELAY and NAT
6.Security services. Provides instant protection to block potential security risks andintrusion attempts.
7.Intuitionistic and convenient Web-based management.
8.Windows 2000/ Windows XP/ Windows Vista/ Windows 7 
9.User-friendly design of LED indicator. Easy to observe the status of equipment
10.Receiving diversity and load equalizer 
11.Built-in WCDMA/GSM and WLAN high gain antenna
12.External main diversity antenna interface
13.USB 2.0 host interface