Spare slot on my laptop's motherboard, is it usable?

motherboard with m 2 slot
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Never used an nvme before So this is new to me If you look at below image, you see the motherboard got two m2 slots One with a heatsink

For $60 more, the Asus ROG Strix B650E-I Gaming WiFi offers PCIe support for the PCIe x16 slot and a PCIe enabled , along with a

motherboard with m2 slot ASUS ROG STRIX B550-A GAMING ATX Motherboard For AMD Ryzen 3rd Gen 5000 Series CPU, Socket AM4 - AMD B550 Chipset - PCIe - 2x

masterbet188 slot slots with one flexible heatsink, Intel® 1 Gb Ethernet, slot for Wi-Fi ready, rear USB Gen 2 , more front USB