MB AM4 ASRock B450 STEEL LEGEND  ATX //  CPU - AMD AM4 Socket Chipset - AMD B450 Memory - Dual Channel DDR4 Memory Technology - 4 x DDR4 DIMM Slots - AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3533+(OC) / 3200(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - Max. capacity of system memory: 64GB** Graphics - Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU* - Shared memory default 2GB. Max Shared memory supports up to 16GB.** - Dual graphics output: - Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz - Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz Audio - 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)* LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s - Realtek RTL8111H Slots AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge) - 2 x PCI Express 3.0 x16 Slots (PCIE1: x16 mode; PCIE4: x4 mode)* - 4 x PCI Express 2.0 x1 Slots Storage - 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug* - 2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, support NCQ, AHCI and Hot Plug - 1 x Ultra M.2 Socket (M2_1), supports M Key type 2230/2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) ( - 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)** USB - 1 x USB 3.1 Gen2 Type-A Port (10 Gb/s) - 1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) - 6 x USB 3.1 Gen1 Ports - 6 x USB 2.0 Ports https://www.asrock.com/mb/amd/b450%20steel%20legend/index.asp#Overview