Cradlepoint IBR650LP-AT 4G LTE (USA) /3G HSPA+ Cellular Router AT+T, Vodafone, T-mo Certified Product is EOL on March 1 2015, Availability is limited after this date. Replacement model is: IBR650LPE-AT Form Factor: router ; Frequency: LTE Band 17 (700MHz), Band 4 (AWS); HSPA+/UMTS (850/1900/2100 MHz); GSM/GPRS/EDGE (850/900/1800/1900 MHz) Dim: 30.0 x 51.0 x 3.15mm Operating system : Linux/Android