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Versatile. Connected. Built to Last. — Unleashing the power of Ryzen™ with PCIe 4.0 speeds and the seamless connectivity of Wi-Fi 6.

 

The ASUS PRIME B550M-A WiFi II is a high-performance Micro-ATX motherboard designed for the AMD AM4 socket, supporting Ryzen™ 5000, 4000 G, and 3000 Series processors. It bridges the gap between productivity and enthusiast gaming with PCIe 4.0 support, high-speed Wi-Fi 6, and dual M.2 slots. Featuring a robust power design with VRM heatsinks and ASUS 5X Protection III, it ensures absolute stability for long-term use. With Aura Sync RGB and Two-Way AI Noise Cancellation, it offers a refined, modern foundation for any versatile PC build.

ASRock B550M Pro4 AM4 Micro-ATX Motherboard

SKU: ASR-B550M-PRO4
₱6,200.00Price
Quantity
Only 1 left in stock
    • Socket: AMD AM4 (Ryzen™ 3000 to 5000 Series)

    • Chipset: AMD B550

    • Memory: 4 x DDR4 DIMM, Max. 128GB, up to 4733+(OC)

    • Storage: 1 x Hyper M.2 (Gen4x4), 1 x M.2 (Gen3x2 & SATA), 6 x SATA3

    • Expansion: 2 x PCIe x16 (PCIE1: Gen4x16), 1 x PCIe 3.0 x1

    • Connectivity: USB 3.2 Gen2 (Type-A + Type-C), Gigabit LAN

    • Form Factor: Micro-ATX (24.4 cm x 24.4 cm)

Description

The ASRock B550M Pro4 is designed to provide the best balance of price and high-end performance. Its 8-phase power design and 50A Chokes ensure that even high-core-count Ryzen™ 5000 series processors run cool and efficiently. The board is structurally reinforced with the ASRock Steel Slot, which prevents signal interference with graphics cards and ensures heavy GPUs are held securely.


For storage, the "Hyper M.2" socket supports the latest PCIe Gen4 x4 SSDs, doubling the speed of the previous generation. Connectivity is equally impressive, featuring both Type-A and Type-C USB 3.2 Gen2 ports on the rear I/O for 10Gb/s transfer speeds. Whether you are a content creator needing triple-monitor support or a gamer looking for the immersive soundstage of Nahimic Audio, the B550M Pro4 delivers a premium experience in a compact Micro-ATX footprint.



Key Features

  • ASRock Super Alloy: Built with an XXL Aluminum Alloy Heatsink, Premium 50A Power Chokes, and a Sapphire Black high-density glass fabric PCB.

  • 8 Power Phase Design: Features Digi Power delivery to provide smooth and efficient power to the CPU for enhanced system stability.

  • PCIe 4.0 Support: Equipped with Steel Slot Gen4 and a Hyper M.2 socket capable of speeds up to 64Gb/s.

  • Triple Monitor Support: Integrated D-Sub, HDMI 2.1, and DisplayPort 1.4 outputs allow for three simultaneous displays.

  • Nahimic Audio: High-definition 7.1 CH audio with content protection and Nahimic optimization for a vibrant, detailed listening experience.

  • POST Status Checker (PSC): An easy troubleshooting tool that shows the status of CPU, DRAM, VGA, and storage during every startup.

  • Full Coverage M.2 Heatsink: Keeps your high-speed NVMe SSDs cool to prevent thermal throttling.



XXL Aluminum Alloy Heatsink


Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.


Sapphire Black PCB

Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.




High Density Glass Fabric PCB

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.




2oz Copper PCB

Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.





3 Graphics Output

Complete with all three types of most used connectors! Packed with a D-Sub + DisplayPort + HDMI combo. Plus the HDMI port supports 4K resolution.

*Supported only with processors with integrated graphics. Please check CPU support list from each motherboard webpage.



Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.





Live Update & App Shop

ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.




Specifications

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