Most RT5370 adapters are plug-and-play. However, for a manual 2022 update, you can find verified drivers on Phipps Electronics , which hosts versions specifically updated for modern Windows builds.
The 2022 builds generally resolve "device not recognized" or "frequent disconnection" errors common with the R12943-series hardware. How to Install Your Downloaded Driver r12943mj2r5370 software download 2022 link
The RT5370 chipset was originally developed by Ralink (now part of MediaTek). While the manufacturer doesn't always provide a direct consumer-facing portal for old chips, several reliable repositories host the 2022 updated driver packages: Most RT5370 adapters are plug-and-play
Select and point it to the folder you extracted. How to Install Your Downloaded Driver The RT5370
Updated drivers fix vulnerabilities in how the adapter handles WPA2/WPA3 handshakes.
Legacy support for these chipsets on newer macOS versions (Monterey/Ventura) can be tricky. Use the macOS RT5370 Driver Link to check compatibility. Why the "2022" Version Matters