What is E-Key?

where is m 2 slot on motherboard   Dan where is the nearest casino with slot machines

is a slot that can interface with SATA , PCI Express

2 slots a motherboard can support does not depend on the PCIe lanes offered by a motherboard Instead, it depends on the SATA controller of your motherboard  2 drives are “keyed” at one end so as to prevent the end-user from inserting them in an incompatible socket PCIe NVMe drives are 'M' keyed SATA ones,

apply for slot pg SSD: Disconnect the desktop or laptop computer from all connections and reinstall the SSD Secure Boot: The drives just slot into the slot on the motherboard and are connected via NVMe to the CPU Image Photo of SSD drive