1 x PCIe 4.0/3.0 x16 1 x PCIe 4.0/3.0 x16 (supports x4 mode) 2 x PCIe 4.0/3.0 x1

Asus ROG STRIX B650-A GAMING WIFI, AMD B650, AM5, ATX, 4 DDR5, HDMI, DP, Wi-Fi 6E, 2.5G LAN, PCIe4, RGB, 3x M.2