A USB Wi-Fi adapter connects a computer to the local wireless network; it does not turn that computer into an MTN 5G modem. Performance therefore depends on two separate links: the mobile connection reaching the router and the Wi-Fi connection crossing the room. Evetech factpacks contain no verified USB adapter SKU or price.
Diagnose both wireless hops
Run a speed and latency test beside the router using a known-good device. Then repeat from the computer location. A large drop only at the second point indicates local Wi-Fi placement or adapter limits rather than the mobile service itself. Test during the hours when the connection will be used.
Compare current USB models by supported Wi-Fi generation, bands, antenna design, driver support, USB interface and warranty. A small adapter hidden behind a metal tower can receive poorly. An extension lead or front port may improve position, but cables must stay clear of feet and chair wheels.
The ASUS PCE-AX1800 WiFi 6 PCIe adapter costs a verified R147 as an internal desktop alternative, not a USB device. It requires a compatible slot and internal installation. The CUDY AC1200 4G LTE router costs a verified R1,396 for a mobile-router reference, but it is not specified here as an MTN 5G router. Verify bands, SIM support and network compatibility independently.
Prove the working route
Download a large file, join a video call and test the normal application from the final desk. Secure the router and computer with unique passwords and current updates.
Choose the adapter only after separating mobile coverage from indoor Wi-Fi loss.
Connecting a PC to mobile broadband? > Ask Evetech to compare USB, PCIe and router options for the room.