HSDPA modem / 6280 modem / 3G USB modem /7.2Mbps modemSimple discription:The HSDPA Modem is a complete 3.5G enabled wireless USB Modem designed to offer high-speed wireless connectivity for Windows notebook and desktop computers on HSDPA networks. It is easy to use USB connector and the ability to roam globally on tri-band UMTS and quad-band GSM/ EDGE networks.It enables connection to internet downlink speed up to 7.2Mbps and uplink to 384kbpsThe compact USB Modem don’t need to install drivers from a CD because the software is included on the device. It also supports a microSD memory expansion no matter whether connect with the Internet or not .  Basic performance* The HSDPA modem is Worldwide used with tri-band UMTS and quad-band GSM/ EDGE operation.
* Capable of wireless data speed up to 7.2Mbps* support voice, SMS,PHONEBOOK,INTERNET
* Accessing E-mail and browsing the WEB.
* USIM card and SIM functionality.
* MicroSD memory expansion.
* Zero install software,No CD required for windows. Features Dimension: 89.1*27.6*12.7mm Weight: About 21g Language: English, Chinese Mode: Dual mode Driver installation: Zero install software, No CD required for windows. Availble operation system: Windows2000/XP/VISTA/win7/Linux MAC lastest OS 10.4 and 10.5 External Interface:
USB 2.0 interface with PC
Internal Antenna Built-in 5 bands
SIM card slot and MicroSD memory expansion slot, support ult 4G memory card. Workable network and RF bandQuad band GSM/GPRS/EDGE: 850/900/1800/1900MHzTri-band UMTS: 850/1900/2100 MHz Transmission rate of differetnt network HSDPA modem : Max downlink:7.2Mbps uplink:384Kbps  Function of phonebook: build New, edit and delete, Store and send SMS functions: Group and single sending , reply, Create new,delete,edit, Save to draft box, Sms shift between SIM card and PCSystem Requirements:
Card Slots: USB Interface
Memory: 32 MB
Disk Space: 32 MB
System:Pentium 150MHz or higher  Enviroment requirementWorking temperature: -20°c ~ +55°cStorage temperature: -20°c ~ +60°cHumidity : 0%~90% (35°c)       Blue color Greeen Color