7.2Mbps USB HSDPA Wireless Modem Support HSDPA / UMTS 2100MHz, GSM / GPRS / EDGE 850 / 900 / 1800 / 1900MHz 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 Environmental Specifications: Operation Temperature: -20~ 55 Storage Temperature: -30~ 65 Humidity: d93% Vibration ( non-operating) : 15g peak, 10~ 500Hz Operating systems Windows® 2000, Windows® XP, Windows® Vista, UBUNTU 8.04, mac os x 10.4 Mechanical: Dimension: 87.9( L) x 27( W) x 12.05( H) mm