... slot (up to 32GB)3 colors LED indicatorOperating systemsWindows2000,Windows XP,Windows 7,Windows Vista,UBUNTU 8.04,Mac os x 10.4 or ... )Anto installation (play and plug)USB Connector TypeSupport OS:windows 2000,XP,Vista,Win7,UBUNTU 8.04,Mac os x 10.4 ... (H) mmWeight: 23g KMT-04 3G Wireless USB modem for laptop