4 x SATA III 2 x M.2 1 x M.2 (2280) - PCIe 4.0 x4 1 x M.2 (2280) - PCIe 4.0 x4* *M2_2 will run at Gen4x4 with 9000 and 7000 series CPUs, Gen4x4 with 8000 (Phoenix 1) series CPUs and Gen4x2 with 800