1 x 2.5" SATA 2 x M.2 2280* - PCIe Gen3 x4 *M.2 slot on the bottom cover side only supports PCIe Gen3 x2 If the SATA is connected to HDD or SSD

Asus Mini PC PN52 Barebone (PN52-B-S5055MD), Ryzen 5 5600H, DDR4 SO-DIMM, 2.5″/M.2, 2x HDMI, DP, USB-C, 2.5G LAN, Wi-Fi, Military-Grade Durability, VESA – No RAM, Storage or O/S