If you are holding onto an old Ralink-powered adapter, this driver version represents the "peak stability" release. Install it correctly, lock it down with power management tweaks, and it will continue to serve reliable 802.11n connectivity—even as the wireless world marches toward Wi-Fi 7.
A: Yes, notably with VirtualBox and VMware. However, you must disable “USB 3.0 (xHCI)” controller for the VM and use USB 2.0 (EHCI). The 5.1.22.0 driver does not handle xHCI interrupt remapping well. 802.11n usb wireless lan card driver version 5.1.22.0
A: Yes, Windows Server 2012 R2 and 2016 can use it after enabling the “Desktop Experience” feature and installing the Wireless LAN Service role. If you are holding onto an old Ralink-powered
A: Generic drivers often have a base date from the original WHQL submission. Version numbers are incremental. A driver showing “2009” with version “5.1.22.0” likely was digitally signed later but retained the legacy timestamp. However, you must disable “USB 3