M2_1 slot (From CPU)
Supports up to PCIe 4.0 x4
Supports 2260/ 2280/ 22110 storage devices
M2_2 & M2_3 slots (From Z690 chipset)
M2_2 slot supports up to PCIe 4.0 x4
M2_3 slot supports up to PCIe 3.0 x4
Supports 2260/ 2280 storage devices
M2_4 & M2_5 slots (From Z690 chipset)
Supports up to PCIe 4.0 x4
Supports up to SATA 6Gb/s
M2_4 slot supports 2280/ 22110 storage devices
M2_5 slot supports 2260/ 2280 storage devices