Huawei E153 Unlocked HSDPA GSM 3G USB Mobile Broadband Modem Unlocked for any Global GSM Carrier, in the operating frequencies with a data broadband activated SIM Card 3G UMTS/HSDPA 2100MHz 2G GSM/GPRS/EDGE 850/900/1800/1900MHz Support data statistics and SMS services Micro SD card reader up to 4GB. Support Windows 2000/XP/Vista and Mac OS X 10.4, 10.5 and 10.6 with latest upgrades Sim card and Micros SD card are not included.