MB AM4 ASRock Fatal1ty B450 Gaming K4 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 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-buffered memory*

Graphics
- Three graphics output options: D-Sub, HDMI and DisplayPort 1.2
- Supports Triple Monitor
- Supports HDMI 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
- Supports D-Sub with max. resolution up to 1920x1200 @ 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
- 2 x PCI Express 3.0 x16 Slots (PCIE2: x16 mode; PCIE4: x4 mode)*
- 4 x PCI Express 2.0 x1 Slots
- Supports AMD Quad CrossFireX™ and CrossFireX™**

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 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/Fatal1ty%20B450%20Gaming%20K4/index.asp#Overview