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Install MT7921K WiFi and Bluetooth Drivers for Minisforum Elitemini B550

I just brought a mini PC, the Elitemini B550. I like its extensibility: it provides a external PCIe 3.0 slot, allowing it to connect to a discrete graphics card. I think it’s a nice development machine.

I ran into some problems with its WiFi and Bluetooth module. It uses a mini-PCIe MT7921K WiFi 6 and Bluetooth 5.0 module. However, it’s Windows drivers are not installed by default, and must be installed manually. MediaTek does not provide drivers for end users. I tried the drivers hosted by Lenovo:

So far, they works fine.