Unless your PC is terribly ancient, you probably have more than one M.2 slot on your motherboard. a**uming the primary slot is occupied by your SSD, that still leaves one or more M.2 slots that you probably never used. While you could add a second NVMe SSD to your system, M.2 slots aren’t made for storage alone. They’re highly versatile connectors that use high-speed PCIe lanes to connect to a variety of devices. You could bring new features to your old motherboard or improve your already-capable motherboard with more advanced devices. The M.2 slot is one of the most powerful and affordable ways to enhance your PC’s capabilities. Whether it’s advanced connectivity or extra USB and SATA ports you’re after, your unused M.2 slots are prepared for almost anything.