Specifications

manufacturer:	Huawei	Huawei
model:	E176	E176G
interface:	USB 2.0 (A plug)	USB 2.0 (A plug)
GSM frequency bands:	850, 900, 1800, 1900	850, 900, 1800, 1900
UMTS frequency bands:	850, 1900, 2100	2100
HSDPA:	7.2 Mbps	7.2 Mbps
HSUPA:	2 Mbit/s (5,76 Mbit/s ready)	2 Mbit/s (5,76 Mbit/s ready)
EDGE:	236,8 KBit/s	236,8 KBit/s
GPRS:	57,6 KBit//s	57,6 KBit//s
CSD:	?	?
connector for ext. antenna:	?	?
connector type:	?	?
internal antenna diversity:	+ (UMTS 2100/1900/850MHz)	+ (UMTS 2100/1900/850MHz)
voice telephony:	?	?
NAND-flashmemory:	+	+
microSD-drive:	+	+
rebranded versions:	T-Mobile Germany as "Web'n'Walk Stick IV"

Source: http://www.huaweidevice.com/worldwide/productFeatures.do?pinfoId=2020&directoryId=2462&treeId=462


T-Mobile Web'n'Walk Stick IV
The Web'n'Walk Stick IV sold by T-Mobile Germany lacks 64-bit drivers. The stick support HSDPA 7,2 and HSUPA 2,0 (ready for Firmware update 5,76) It can easily be debranded by running the Huawei update linked below, which will replace the T-Mobile dashboard ("Web'n'Walk manager") with Huawei's Mobile Partner and also bring 64-bit drivers for Windows Vista and Windows 7.

There is a new Version of the E176 from Bildmobil Germany. It it called E1762 and supports HSDPA 7,2 and HSUPA 5,76. The stick support UMTS 900 and 2100. The normal E176 support UMTS 850,1900 and 2100.

Version E176G supports:
GSM 850/900/1800/1900
UMTS 2100

update
http://www.huawei.com/mobileweb/en/doc/list.do?type=-1&id=6900