hdd slot in motherboard

M.2 is a slot that can interface with SATA 3.0 (the cable that's probably connected to your desktop PC's storage drive right now), PCI Express 3.0 (the default interface for graphics cards and other major expansion devices), and even USB 3.0. That means that---potentially---any storage or disk drive, GPU or port expansion, or low-power gadget ... saputri 88 slot