how to tell how many nvme drive slots a motherboard has?

How to Install M2 SSD with Plastic Clip on Gigabyte Motherboard m 2 ssd slot motherboard NVMe SSD 50% slower on socket 1 m2 slot types 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,

m2 expansion slot Portable SSD · Memorys · DDR5 series · DDR4 series · Industrial Motherboards 1 PCIe x16 slot; 4 SATA3, 2 x ; Graphics Output Options