1. 3g usb modem sd slot
2. OEM accept,Quadband
3. 7.2mpbs speed
4. support memory card slot

3g usb modem sd slot H750/OEM accept/7.2mbps/support memory card slot

Interface Type: USB (1.0 and 2.0)
Systems supportedSup:ports most types of laptop and desktop PC.
Operating systems supported: Windows 2000, XP SP2, Vista  Apple MAC OS
Functions: SMS service, Data service, Applications management, Data concurrent, support MicroSD card, etc.
Memory: About 30MB Internal Memory  available to carriers or users.  Expandable with MircroSD(Can be used as a memory stick)
Network Standards: HSDPA/WCDMA/UMTS/EDGE/GPRS/GSM
Transmission(Max. data rate): UMTS 384Kbps UL     HSDPA 7.2Mbps DL
LED: Indicating HSDPA/UMTS operating status
Antenna: Internal antenna
Equalization: Support
Temperature: '-20°C ~ +60°C
Weight: About 33g

Frequency  Band
HSDPA/UMTS 2100 MHz
EDGE/GPRS/GSM850/ 900/1800/1900MHz
Performance
HSDPA: Downlink: 7.2M bps
PC Interface  USB Interface
Memory  NAND Flash + SDRAM:512M
Driver Installed  Auto
T-FLASH  Support
Transfer content  Data
Support phonebook management
Message  SMS
SIM and USIM     compatible  ( Standard 6 PIN Interface)
EDGE/GPRS  CLASS 12
Support Connection, Security, Network,Message and Alert settings