// 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 (4096x2160) @ 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 Wireless LAN - Intel® 802.11ac WiFi Module - Supports IEEE 802.11a/b/g/n/ac - Supports Dual-Band (2.4/5 GHz) - Supports Bluetooth 4.2 + High speed class II 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 - 4 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) (with Matisse) or Gen3x4 (32 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%204ac/index.asp#Overview