Huawei Original Antenna for 4G LTE Router External Antenna for Huawei B593 E5186 B315 B310 B525
How to improve router speed. Adding an external antenna and the internet speed( Huawei B525s - 23) - YouTube
Genuines Original Black Huawei 4g Lte For B593 B890 B525 B3000 External Antenna Original Type C (router/modem Not Included) - Modems & Gateways - AliExpress