Mainboard|ASROCK|AMD B450|SAM4|Micro-ATX|Memory DDR4|Memory slots 4|1xPCI-Express 2.0 1x|1xPCI-Express 2.0 16x|1xPCI-Express 3.0 16x|2xM.2|1x15pin D-sub|1xDVI-D|1xHDMI|2xAudio-In|1xAudio-Out|2xUSB 2.0|5xUSB 3.2|1xUSB-C|1xPS/2|1xRJ45|B450MPRO4R2.0

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)