ASRock B550 Pro4 AM4 ATX Motherboard – PCIe 4.0, 2× M.2, HDMI, USB-C
ASRock B550 Pro4 ATX Motherboard – Ryzen Ready, PCIe 4.0, Dual M.2, RGB, Nahimic Audio
Performance, Reliability & Expansion – Built for Gamers, Power Users & Creators
Upgrade your PC with the ASRock B550 Pro4 – a full-sized ATX motherboard designed to harness the power of AMD Ryzen 3000, 4000 G-Series, and 5000 Series processors. With PCIe 4.0 support, dual M.2 sockets, rich connectivity, RGB headers, and high-fidelity Nahimic Audio, this board combines next-gen speed with customisable features.
🔑 Key Features at a Glance
✅ Windows 11 Ready – Fully compatible for future OS upgrades
✅ Supports Ryzen 3000, 4000G & 5000 Series CPUs (AM4 socket)
✅ PCIe 4.0 x16 slot for next-gen GPUs
✅ Dual M.2 Sockets incl. Hyper M.2 (PCIe Gen4 x4)
✅ Nahimic 7.1 CH HD Audio – Immersive surround sound
✅ 2× USB 3.2 Gen2 Ports (Type-A + Type-C) – Ultra-fast 10Gbps
✅ 6× SATA3 Ports & Dual RGB Headers
✅ ASRock Super Alloy Build – Reinforced slots & 2oz Copper PCB
✅ Full-Size ATX Form Factor – Ideal for expansion and airflow
⚙️ Detailed Specifications
🧠 CPU Support:
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AMD AM4 socket
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Compatible with Ryzen 3000 / 4000G / 5000 Series processors
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Not compatible with Ryzen 5 3400G & Ryzen 3 3200G
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Digi Power, 8 Power Phase Design with Premium 50A Chokes
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Steel Slot Gen4 Reinforcement
💾 Memory:
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4× DDR4 DIMM slots, dual-channel
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Max capacity: 128GB
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Supports DDR4 4733+(OC) / 3200 / 2933 / 2667 MHz etc.
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ECC & Non-ECC, un-buffered memory
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XMP support
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15μ Gold Contacts for enhanced reliability
🎮 Graphics:
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HDMI 2.1 (4096x2160 @ 60Hz)
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D-Sub (1920x1200 @ 60Hz)
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HDR, HDCP 2.3, Deep Color, PlayReady & Lip Sync support
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Dual monitor output
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Integrated Radeon Graphics supported via Ryzen APUs
🎧 Audio:
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Realtek ALC1200 7.1 CH HD Audio Codec
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Nahimic Audio for immersive sound across all outputs
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Premium Blu-ray support
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Isolated PCB audio layers for reduced interference
📦 Expansion Slots:
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1× PCIe 4.0 x16
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1× PCIe 3.0 x16 (x4 mode)
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2× PCIe 3.0 x1
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1× M.2 Key E (for Wi-Fi/BT modules)
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Supports AMD CrossFireX
💽 Storage:
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1× Hyper M.2 (PCIe Gen4 x4 – 64Gb/s)
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1× M.2 (PCIe Gen3 x2 & SATA3 – 16Gb/s)
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6× SATA3 6Gb/s (RAID 0/1/10 support)
🔌 USB Ports:
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Rear I/O:
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1× USB 3.2 Gen2 Type-A
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1× USB 3.2 Gen2 Type-C
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4× USB 3.2 Gen1
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Internal Headers:
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2× USB 2.0 (4 ports total)
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1× USB 3.2 Gen1 (2 ports)
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🌐 LAN:
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Realtek RTL8111H Gigabit Ethernet
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Wake-On-LAN, ESD & Lightning Protection
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Energy Efficient Ethernet 802.3az
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PXE Boot support
🛠 Internal Headers:
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2× RGB LED headers
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2× Addressable RGB LED headers
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1× CPU fan (4-pin)
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1× CPU/W_Pump fan (4-pin)
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4× Chassis/W_Pump fan headers
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1× TPM header
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1× COM port header
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1× Front panel audio
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1× 24-pin ATX & 8-pin + 4-pin CPU power
🔙 Rear I/O Ports:
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1× HDMI 2.1
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1× D-Sub
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1× USB 3.2 Gen2 Type-A
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1× USB 3.2 Gen2 Type-C
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4× USB 3.2 Gen1
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1× PS/2 mouse/keyboard port
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1× RJ-45 LAN port
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3× HD Audio jacks
🧊 Cooling & Build:
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2oz Copper PCB
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XXL Aluminium Alloy Heatsinks
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High Density Glass Fabric PCB
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Full Spike Protection for USB, Audio, and LAN
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Steel Slot Gen4 for GPU support
🧰 Form Factor & OS Support:
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ATX – 30.5 cm x 24.4 cm
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OS: Windows 10 / 11 64-bit
📦 What’s in the Box?
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ASRock B550 Pro4 Motherboard
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2× SATA Cables
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I/O Shield
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3× Screws for M.2 Sockets
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M.2 Standoff
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Quick Installation Guide
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Support CD (Drivers, Utilities, Chrome Browser, etc.)
💡 Why Choose the ASRock B550 Pro4?
Built for future-proofing, the B550 Pro4 delivers premium-grade durability and performance at a mid-range price. Whether you're gaming, editing, or streaming, this motherboard balances overclocking potential, upgrade flexibility, and multimedia capability with stunning audio and fast storage.
Its dual M.2 slots (including Gen4), high-end power delivery, and Gen2 USB-C support make it ideal for demanding users who want speed, reliability, and next-gen compatibility – all with a full-sized ATX layout for maximum airflow and expansion.