... 2 *External antenna interface 2*2 MiMo HUAWEI E398u-1: 4G LTE FDD -- 900/2600 Mhz HUAWEI E398u-11: 4G LTE FDD -- 1800 ... Modem. It has many branch models such as HUAWEI E398u-1, HUAWEI E398u-11, HUAWEI E398u-15, HUAWEI E398u-18. It's the fastest USB ... modem for 4G LTE networks.The 4G USB Surfstick Huawei ...