For Huawei B311s-220 4G LTE Wifi Router LTE,CAT 4, 4G External Antenna SMA Black | eBay
Black Includes 1 x External Antenna HUAWEI Unlocked B311s-220 4G/LTE Home/Office Router VOIP VPN Bridge Mode Renewed Will work with any Sim Card Worldwide Periferiche di rete Informatica berjaya.edu.my
HUAWEI b311s-220 Router and signal strength. : r/techsupport