MB AM4 ASRock B450M-HDV R4.0 mATX// CPU- AMD AM4 Socket- Supports CPU up to 105WChipset- AMD B450Memory- Dual Channel DDR4 Memory Technology- 2 x DDR4 DIMM Slots- Support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-buffered memoryGraphics- Three graphics output options: D-Sub, DVI-D and HDMI- Supports Triple Monitor- Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz- Supports D-Sub with max. resolution up to 2048x1536 @ 60HzAudio- 7.1 CH HD Audio (Realtek ALC887 Audio Codec)LAN- PCIE x1 Gigabit LAN 10/100/1000 Mb/s- Realtek RTL8111HSlots- 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*- 1 x PCI Express 2.0 x1 SlotStorage- 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug- 1 x Ultra M.2 Socket, supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s) USB- 6 x USB 3.1 Gen1 Ports (2 Front, 4 Rear)- 6 x USB 2.0 Portshttps://www.asrock.com/MB/AMD/B450M-HDV%20R4.0/index.asp#Overview