SATA, PCIe, and : The slots on your motherboard, explained

How to install NVME SSD on older Motherboards PC where is m 2 slot on 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, where is the m2 slot on my motherboard FRONTECH H81 Chipset Motherboard with 2xDDR3 RAM Slots LGA1150 Supports 4th Gen Processors 2xUSB , 4xUSB 4xSATA Slots

where is m2 slot on motherboard 2 PCIe drive is only compatible with the slot on the motherboard The slot supports different cards However, the SATA SSDs can use both