RMA Asrock AMD AM4 B450M PRO4 R2.0 - Supports AMD AM4 Socket Ryzen 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors Supports DDR4 3200* 1 PCIe 3.0 x16, 1 PCIe 2.0 x16, 1 PCIe 2.0 x1 AMD Quad CrossFireX Graphics Output:HDMI, DVI-D, D-Sub 7.1 CH HD Audio (Realtek ALC892 897 Audio Codec) 4 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3) 2 USB 3.2 Gen2 (Rear Type-A C), 6 USB 3.2 Gen1 (2 Front, 4 Rear) Realtek Gigabit LAN