Platform: Qualcomm MSM 6280 Network: HSDPA/ UMTS/ EDGE/ GPRS/ GSM Performance: HSDPA: Downlink: 7.2Mbps, Uplink: 384K bps Operation System: Windows 2000, Windows XP, Vista Interface Type: USB ( 1.0 and 2.0) Memory: NAND Flash + SDRAM: 64MB+ 32MB Driver Installed: Auto Transfer content: Data Message: SMS SIM and USIM: Compatible EDGE/ GPRS: CLASS 12 Dimension: 26.8X91.4X12.5MM Temperature: -20° C ~ + 60° C Weight: 26g