nvm slotHi Guys, recently I installed a SKHynix 256Gb in the second slot of my Motherboard which is NVME Gen 3 PCIe Gen 3.0The ‘Key M’ or ‘M key’ slot is specifically for PCI-E SSDs aka NVME SSDs which are currently the fastest SSD type that one can buy. The ‘Key B’ slot is for M.2 SATA SSDs.