MB AM4 ASRock B550 PHANTOM GAMING 4 ATX
// CPU
– AMD AM4 Socket
– Supports 3rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors*
Chipset
– AMD B550
Memory
– Dual Channel DDR4 Memory Technology
– 4 x DDR4 DIMM Slots
– Supports DDR4 4733+ (OC)
– Max. capacity of system memory: 128GB**
Graphics
– Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU*
– Shared memory default 2GB. Max Shared memory supports up to 16GB.**
– Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096×2160) @ 60Hz
Audio
– 7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec)
LAN
– PCIE x1 Gigabit LAN 10/100/1000 Mb/s
– Realtek RTL8111H
Slots
– 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)*
– 2 x PCI Express 3.0 x1 Slots
– Supports AMD Quad CrossFireX™ and CrossFireX™
– 1 x M.2 Socket (Key E) with the bundled WiFi-802.11ac module
Storage
– 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
– 1 x Hyper M.2 Socket (M2_1), supports M Key type 2260/2280/22110 M.2 PCI Express module up to Gen4x4 (64 Gb/s) or Gen3x4 (32 Gb/s)**
– 1 x M.2 Socket (M2_3), supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)**
USB
– 8 x USB 3.2 Gen1 Ports
– 4 x USB 2.0 Ports
https://www.asrock.com/mb/AMD/B550%20Phantom%20Gaming%204/index.asp#Overview