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ASRock B550 Pro4 AMD AM4 Socket Motherboard, ATX, 4x DDR4 Slots, 2x M.2 Sockets, GbE LAN, 1x D-Sub / 1x HDMI Port

ASRock B550 Pro4 AMD AM4 Socket Motherboard, ATX, 4x DDR4 Slots, 2x M.2 Sockets, GbE LAN, 1x D-Sub / 1x HDMI Port

Regular price £102.20 GBP
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ASRock B550 ATX Motherboard – Windows 11 Ready

Powerful, feature-rich AMD B550 motherboard designed for 3rd Gen AMD Ryzen and future AMD Ryzen processors, with robust power delivery, advanced audio, and high-speed connectivity.


Key Features

  • Windows 11 Ready
  • CPU Support
  • Supports 3rd Gen AMD AM4 Ryzen and future AMD Ryzen processors
  • Digi Power design
  • 8 Power Phase design
  • Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G

  • Graphics & Display

  • Integrated AMD Radeon Vega Series Graphics in Ryzen Series APUs
  • Dual graphics outputs: HDMI and D-Sub (independent display controllers)
  • HDMI 2.1: up to 4K x 2K (4096x2160) @ 60Hz
  • D-Sub: up to 1920x1200 @ 60Hz
  • Supports DirectX 12, Pixel Shader 5.0
  • Supports Auto Lip Sync, Deep Color (12bpc), xvYCC, HBR audio, HDR, HDCP 2.3, 4K UHD playback, Microsoft PlayReady

  • Audio

  • 7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec)
  • Premium Blu-ray Audio support
  • Surge protection, PCB isolate shielding, individual PCB layers for R/L audio channel
  • Nahimic Audio for immersive sound via headphones, headsets, speakers, USB, Wi-Fi, analog, or HDMI

  • Networking

  • PCIE x1 Gigabit LAN 10/100/1000 Mb/s (Realtek RTL8111H)
  • Wake-On-LAN, Lightning/ESD protection, Energy Efficient Ethernet 802.3az, PXE support

Power & PCB Design

  • 8 Power Phase Design
    Sturdy components and smooth power delivery to the CPU, with enhanced performance and low temperatures.

  • Premium 50A Power Choke
    Improves saturation current up to three times over traditional chokes, delivering enhanced Vcore voltage.

  • 2oz Copper PCB
    2 ounce copper inner layers for stable signal traces, lower temperatures, and higher energy efficiency, supporting extreme DDR4 memory performance.

  • ASRock Super Alloy

  • XXL Aluminum Alloy Heatsink
  • Premium 50A Power Choke
  • Sapphire Black PCB
  • High Density Glass Fabric PCB
  • 2oz Copper PCB

Memory

  • Dual Channel DDR4 Memory Technology
  • 4 x DDR4 DIMM slots
  • Max system memory: 128GB
  • 15µ gold contact in DIMM slots
  • Supports Extreme Memory Profile (XMP) memory modules

AMD Ryzen series CPUs (Matisse)
Supports 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
Supports 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


Expansion & Slots

  • PCIe Slots (with AMD Ryzen series CPUs – Matisse)
  • 2 x PCI Express x16

    • PCIE1: Gen4 x16 mode
    • PCIE3: Gen3 x4 mode
  • PCIe Slots (with AMD Ryzen series APUs)

  • 2 x PCI Express x16
    • PCIE1: Gen3 x16 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), supports type 2230 WiFi/BT module
  • ASRock Steel Slot Gen4

Storage

  • 6 x SATA3 6.0 Gb/s connectors
  • Supports RAID 0, 1, 10, NCQ, AHCI and Hot Plug

  • 1 x Hyper M.2 Socket (M2_1)

  • M Key type 2260/2280/22110
  • PCIe module up to Gen4 x4 (64 Gb/s) with Matisse or Gen3 x4 (32 Gb/s)

  • 1 x M.2 Socket (M2_3)

  • M Key type 2242/2260/2280
  • Supports M.2 SATA3 6.0 Gb/s module and M.2 PCIe module up to Gen3 x2 (16 Gb/s)

  • ASRock Full Coverage M.2 Heatsink

  • ASRock Hyper M.2 (PCIe Gen4x4)

Connectivity & I/O

Rear Panel I/O
  • Antenna bracket
  • 1 x PS/2 mouse/keyboard port
  • 1 x D-Sub port
  • 1 x HDMI port
  • 1 x USB 3.2 Gen2 Type-A port (10 Gb/s, ESD protection)
  • 1 x USB 3.2 Gen2 Type-C port (10 Gb/s, ESD protection)
  • 4 x USB 3.2 Gen1 ports (ESD protection)
  • 1 x RJ-45 LAN port with ACT/LINK and SPEED LEDs
  • HD audio jacks: Line in / Front speaker / Microphone
Internal Connectors
  • 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 4-pin 12V power connector
  • 1 x Front panel audio connector
  • 2 x USB 2.0 headers (up to 4 USB 2.0 ports, ESD protection)
  • 1 x USB 3.2 Gen1 header (up to 2 USB 3.2 Gen1 ports, ESD protection)

USB & Unique Features

  • ASRock USB 3.2 Gen2
  • 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s)
  • 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)

  • ASRock Exclusive Features

  • ASRock Steel Slot Gen4
  • ASRock Full Coverage M.2 Heatsink
  • ASRock Hyper M.2 (PCIe Gen4x4)
  • ASRock POST Status Checker (PSC)
  • ASRock Full Spike Protection (for all USB, Audio, LAN ports)
  • ASRock Live Update & APP Shop

BIOS & UEFI

  • 256Mb AMI UEFI Legal BIOS with GUI support
  • Supports Plug and Play
  • ACPI 5.1 compliance wake up events
  • Jumperfree configuration
  • SMBIOS 2.3 support
  • CPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP voltage multi-adjustment
  • ASRock Full HD UEFI
  • ASRock Instant Flash

Software

  • Included Software
  • ASRock Motherboard Utility (A-Tuning)
  • ASRock Polychrome SYNC
  • ASRock XFast LAN

  • Support CD

  • Drivers, utilities, AntiVirus software (trial version), Google Chrome browser and toolbar

Accessories

  • Quick Installation Guide
  • Support CD
  • I/O shield
  • 2 x SATA data cables
  • 3 x screws for M.2 sockets
  • 1 x standoff for M.2 socket

Hardware Monitoring

  • Temperature sensing: CPU, CPU/Water Pump, Chassis/Water Pump fans
  • Fan tachometer: CPU, CPU/Water Pump, Chassis/Water Pump fans
  • Quiet Fan (auto-adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump fans
  • Fan multi-speed control: CPU, CPU/Water Pump, Chassis/Water Pump fans
  • Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, +1.8V, VDDP

Form Factor & Build

  • ATX Form Factor: 12.0" x 9.6" (30.5 cm x 24.4 cm)
  • Solid capacitor design
  • 2oz Copper PCB

Operating System & Certifications

  • OS Support
  • Microsoft Windows 10 64-bit

  • Certifications

  • FCC
  • CE
  • ErP/EuP ready (ErP/EuP ready power supply required)