Network bands: 2100/1900/1800/900/850MHz
Maximum download speed: 21 Mbps
Antenna: External antenna interface
External interfaces: USB 2.0 High Speed, SIM/USIM card: standard 6-pin SIM card interface, Micro SD Card Slot
Additional Services available: Write, send and receive SMS
Dimensions : 89mm x 27mm x 12mm
Weight : 30g

The key features of Huawei E353 HSPA+ 3G Modem:

1. HSPA+/UMTS 2100/1900/900/850MHz, GSM/GPRS/EDGE 850/900/1800/1900 MHz
2. Equalizer and receive diversity（TYPE 3）
3. HSDPA data service of up to 21.6 Mbps
4. HSUPA data service of up to 5.76
5. UMTS PS domain data service of up to 384 kbps
6. EDGE packet data service of up to 236.8 kbps
7. GPRS packet data service of up to 85.6 kbps
8. SMS based on PS domain of GSM and WCDMA
9. Automatic installation
10. Personal Computer/Smart Card (PC/SC) Driver
11. NDIS Driver
12. USB Stick，easy to connect
13. Dual internal antenna
14. Standard USB interface（Type A）
15. External antenna interface
16. Micro Secure Digital Memory (Micro SD) Card
17. Windows 2000/ Windows XP/ Windows Vista/, Windows 7/ MAC Linux operating system (OS)

The main specifications of Huawei E353 HSPA+ 3G Dongle:

1. Dimensions :

Height: 89mm
Width: 27mm
Depth: 12mm

2. Weight : <30g

3. Model : E353

4. Form : USB Stick

5. Communication System : UMTS / HSUPA / GSM / GPRS / EDGE

6. Speed : Download speed HSDPA 21.6Mbps / Upload speed HSUPA 5.76Mbps

7. microSD card slot : Yes

8. External Antenna Interface : Yes

9. Receive Diversity : Yes

10. Supported Operating Systems : Windows XP SP3, Windows Vista SP1/SP2, Windows 7, Mac OS X 10.5, 10.6 with latest upgrades