What Is the Use of M.2 Slot? What Drives Can I Install?
ORICO M.2 PCIe Adapter NVMe & SATA Dual Protocol, M2 NVMe SSD to PCI-e 3.0 x4 Host NVMe & SATA Protocol Controller Expansion Card (B KEY+M KEY) - Newegg.com
M.2 - Wikipedia
Onvian M.2 NVME Adapter SSD To PCIe Card M.2 Key M Driver With Silicone Cooling Pad Hard Drive Adapter Support PCIe x4x8x16 Slot - AliExpress
PCI-E 3.0 x1 X4 to M.2 NVMe Adapter Expansion Card M Key Slot Converter PCI Express 1X4X8X16X M2 For 2230 2242 2260 2280 BTC PC - AliExpress
StarTech.com 2x M.2 NGFF SSD RAID Controller Card plus 2x SATA III Ports - PCIe - Two Slot PCI Express M.2 RAID Card plus Two SATA Ports (PEXM2SAT3422) - storage controller (RAID) -