Given that driver 51220 is nearly a decade old, should you stick with it? Here is an honest assessment.
Prevents the adapter from permanently disabling itself when the computer wakes up from sleep or hibernation mode. How to Install and Update the Driver 80211n usb wireless lan card driver version 51220
Some 51220 packages include setup.exe . Run it as Administrator, but be aware: it may install additional utilities (Realtek WLAN Client) which are optional but harmless. Given that driver 51220 is nearly a decade
: Up to 150 Mbps (single antenna) or 300 Mbps (dual antenna). 80211n usb wireless lan card driver version 51220