ASRock B550M Pro4 AMD AM4 Socket Motherboard Micro-ATX 4x DDR4

Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors8 Power Phase Design, Digi PowerSupports DDR4 4733+ (OC)1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFiGraphics Output Options: HDMI, DisplayPort, D-SubAMD CrossFireX7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)2 USB 3.2 Gen2 (Rear Type A+C), 8 USB 3.2 Gen1 (4 Front, 4 Rear)Realtek Gigabit LANNahimic AudioWhether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.8 Power Phase DesignFeaturing sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.Premium 50A Power ChokeCompared to traditional chokes, ASRocks premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.2oz Copper PCB2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!SpecificationsUnique FeatureASRock USB 3.2 Gen2- ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)- ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)ASRock Super Alloy- XXL Aluminum Alloy Heatsink- Premium 50A Power Choke- Sapphire Black PCB- High Density Glass Fabric PCB- 2oz Copper PCBASRock Steel Slot Gen4ASRock Full Coverage M.2 HeatsinkASRock Hyper M.2 (PCIe Gen4x4)ASRock POST Status Checker (PSC)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update & APP ShopCPUSupports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen ProcessorsDigi Power design8 Power Phase designNot compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G.ChipsetAMD B550MemoryDual Channel DDR4 Memory Technology4 x DDR4 DIMM SlotsAMD 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 memoryAMD 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 memoryMax. capacity of system memory: 128GBSupports Extreme Memory Profile (MP) memory modules15 Gold Contact in DIMM SlotsBIOS256Mb AMI UEFI Legal BIOS with GUI supportSupports "Plug and Play"ACPI 5.1 compliance wake up eventsSupports jumperfreeSMBIOS 2.3 supportCPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP Voltage Multi-adjustmentGraphicsIntegrated AMD Radeon Vega Series Graphics in Ryzen Series APUDirectX 12, Pixel Shader 5.0Shared memory default 2GB. Max Shared memory supports up to 16GB.Three graphics output options: D-Sub, HDMI and DisplayPort 1.4Supports Triple MonitorSupports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60HzSupports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120HzSupports D-Sub with max. resolution up to 1920x1200 @ 60HzSupports 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 2.1Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 PortsSupports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 PortsSupports Microsoft PlayReadyAudio7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec)Premium Blu-ray Audio supportSupports Surge ProtectionPCB Isolate ShieldingIndividual PCB Layers for R/L Audio ChannelNahimic AudioLANPCIE x1 Gigabit LAN 10/100/1000 Mb/sRealtek RTL8111HSupports Wake-On-LANSupports Lightning/ESD ProtectionSupports Energy Efficient Ethernet 802.3azSupports PXESlotsAMD 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 SlotSupports AMD Quad CrossFireX and CrossFireX1 x M.2 Socket (Key E), supports type 2230 WiFi/BT moduleStorage6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug1 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)Connector1 x COM Port Header1 x SPI TPM Header1 x Power LED and Speaker Header2 x RGB LED Headers2 x Addressable LED Headers1 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 Connector1 x 8 pin 12V Power Connector1 x Front Panel Audio Connector2 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)Rear Panel I/OAntenna Bracket1 x PS/2 Mouse/Keyboard Port1 x D-Sub Port1 x HDMI Port1 x DisplayPort 1.41 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 / MicrophoneSoftware and UEFISoftware- ASRock Motherboard Utility (A-Tuning)- ASRock XFast LANUEFI- ASRock Full HD UEFI- ASRock Instant FlashSupport CDDrivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and ToolbarAccessoriesQuick Installation Guide, Support CD, I/O Shield2 x SATA Data Cables2 x Screws for M.2 SocketsHardware MonitorTemperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump FansFan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump FansQuiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump FansFan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump FansVoltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, +1.8V, VDDPForm FactorMicro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cmSolid Capacitor design2oz Copper PCBOSMicrosoft Windows 10 64-bitCertificationsFCC, CEErP/EuP ready (ErP/EuP ready power supply is required)-Socket: AM4CPU Compatibility: AMD RyzenChipset: AMD B550Form Factor: Micro ATXMemory Slots: DDR4 - 4 SlotsM.2 Compatibility: NVMe / SATAUSB C: Yes