USB slot
SMS Message
Data service
Data transmission up to 7.2Mbps (HSDPA)
Data transmission up to 384Kbps (UMTS)
Data transmission up to 384Kbps (EDGE)
High-capacity phone book/SMS box
Auto installation T-flash card slot (up to 8GB)
Environmental Specifications:Operation Temperature: -20~55
Storage Temperature: -30~65
Humidity:less than 93% Vibration (non-operating): 15g peak, 10~500Hz

gsm modem
Operating systems:Windows2000,XP,Win7,Vista,UBUNTU 8.04,Mac os x 10.4
Mechanical:Dimension: 87.9(L) x 27(W) x 12.05(H) mm