Asrock B550M Pro4

CPU Supports 3rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors Digi Power design 8 Power Phase design Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G. Chipset AMD B550 Memory Dual Channel DDR4 Memory Technology 4 x DDR4 DIMM Slots AMD Ryzen series CPUs (Matisse) support DDR4 4533+(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC& non-ECC, un-buffered memory AMD Ryzen series APUs support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC& non-ECC, un-buffered memory Max. capacity of system memory: 128GB Supports Extreme Memory Profile (XMP) memory modules 15µ Gold Contact in DIMM Slots For Ryzen Series CPUs (Picasso), ECC is only supported with PRO CPUs. Graphics Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU DirectX 12, Pixel Shader 5.0 Shared memory default 2GB. Max Shared memory supports up to 16GB. Three graphics output options: D-Sub, HDMI and DisplayPort 1.4 Supports Triple Monitor Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required) Supports HDR (High Dynamic Range) with HDMI 2.1 Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports Supports Microsoft® PlayReady Actual support may vary by CPU The Max shared memory 16GB requires 32GB system memory installed. Audio 7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec) Premium Blu-ray Audio support Supports Surge Protection PCB Isolate Shielding Individual PCB Layers for R/L Audio Channel Nahimic Audio LAN PCIE x1 Gigabit LAN 10/100/1000 Mb/s Realtek RTL8111H Supports Wake-On-LAN Supports Lightning/ESD Protection Supports Energy Efficient Ethernet 802.3az Supports PXE Slots AMD Ryzen series CPUs (Matisse) 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode) AMD Ryzen series APUs 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode) 1 x PCI Express 3.0 x1 Slot Supports AMD Quad CrossFireX™ and CrossFireX™ 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module Supports NVMe SSD as boot disks 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 2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)** 1 x M.2 Socket (M2_2), supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)** M2_2 and SATA3_5_6 share lanes. If either one of them is in use, the other one will be disabled. Supports NVMe SSD as boot disks Supports ASRock U.2 Kit Connector 1 x COM Port Header 1 x SPI TPM Header 1 x Power LED and Speaker Header 2 x RGB LED Headers 2 x Addressable LED Headers 1 x CPU Fan Connector (4-pin) 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control) 4 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control) 1 x 24 pin ATX Power Connector 1 x 8 pin 12V Power Connector 1 x Front Panel Audio Connector 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection) 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (Supports ESD Protection) Support in total up to 12V/3A, 36W LED Strip Support in total up to 5V/3A, 15W LED Strip The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use. Rear Panel I/O Antenna Bracket 1 x PS/2 Mouse/Keyboard Port 1 x D-Sub Port 1 x HDMI Port 1 x DisplayPort 1.4 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection) 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection) 4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (Supports ESD Protection) 2 x USB 2.0 Ports (Supports ESD Protection) 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) HD Audio Jacks: Line in / Front Speaker / Microphone Form Factor Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm Solid Capacitor design 2oz Copper PCB OS Microsoft® Windows® 10 64-bit.