WCDMA:
HuaWei E230, HuaWei E176G, HuaWei E160E, HuaWei E182G, HuaWei E1782, HuaWei E1750, ZTE MF6338P-1, ZTE MF633, ZTE MF637U, HuaWei E1756, HuaWei UMG1691, SRT-H800, HuaWei-E220, HuaWei-230, HuaWei-E261, HuaWei-E1756, ZTE K3772-Z
CDMA2000/EVDO:
HuaWei E150, HuaWei EC1261, HuaWei EC122, HuaWei EC156, HuaWei EC1270, ZTE AC580, ZTE AC2736, ZTEAC 2746, SRT-H800,EU830, ZTE-AC590, HuaWei-ec1270, HuaWei-EC122, ZTE-AC2746, ZTE-AC2736, C820, SEV790
Usage: Just insert the available 3G Dongle, and it will automatically dial-up. If you face trouble in connecting the dongle please refer to this: http://domosupport.com/kbase/how-to-connect-3g-dongle-to-the-slate-x15/
Note: The 3G dongles firmwares are sometimes updated by the manufacturers or users. We cannot guarantee that every firmware of the 3G dongles mentioned above will be compatible with the device. The ones we tested had stock firmware and have worked seamlessly.