ASRock B550M Pro4 Micro ATX AM4 Motherboard DDR4 USB-C Gigabit LAN
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ASRock
90-MXBDK0-A0UAYZ
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ASRock B550M Pro4 Micro ATX AM4 Motherboard
A feature-rich AMD B550 Micro ATX motherboard for AM4 desktop builds, with DDR4 memory support, PCIe 4.0-ready expansion, dual M.2 storage, USB-C Gen2 and Gigabit LAN.
AMD B550AM4DDR4USB-C Gen2
The ASRock B550M Pro4 is a Micro ATX motherboard for AMD AM4 desktop systems, offering a practical balance of upgrade features and compact system compatibility. With AMD B550 chipset support, four DDR4 memory slots, PCIe 4.0-ready graphics expansion, dual M.2 storage, rear USB 3.2 Gen2 Type-C and Realtek Gigabit LAN, it is a strong choice for Ryzen-based gaming, home and productivity PCs.
Compatibility Note: Please confirm CPU, DDR4 memory, case, cooler and BIOS compatibility before purchase. This motherboard uses the AMD AM4 socket and does not support newer AM5 processors or DDR5 memory.
Best For
✓ AMD Ryzen AM4 desktop builds
✓ Compact Micro ATX gaming PCs
✓ Dual M.2 SSD configurations
✓ USB-C and Gigabit wired setups
Key Features
AMD AM4 Platform
The AMD B550 chipset supports compatible Ryzen 3000, 4000 G-Series, 5000 and 5000 G-Series desktop processors, making it useful for value-focused AM4 builds and upgrades.
DDR4 Memory Flexibility
Four DDR4 DIMM slots support up to 128GB memory and XMP profiles, giving the system room for multitasking, gaming and productivity upgrades.
Dual M.2 Storage
A Hyper M.2 socket supports up to PCIe Gen4x4 with compatible Ryzen CPUs, while the second M.2 slot supports PCIe Gen3x2 and SATA3 mode for flexible SSD configurations.
Useful Rear Connectivity
Rear USB 3.2 Gen2 Type-A and Type-C, HDMI, DisplayPort, D-Sub and Gigabit LAN provide practical connectivity for modern desktop and office systems.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
Choose this model if you need a well-equipped AM4 Micro ATX board with dual M.2, USB-C Gen2, four DDR4 slots and practical expansion for a Ryzen build. If you need built-in Wi-Fi, 2.5GbE LAN or newer DDR5 platform support, consider a Wi-Fi-equipped B550 model or an AM5 motherboard instead.
Buyer’s Guide
Buy it if
You are building or upgrading an AMD AM4 PC and want a Micro ATX B550 motherboard with DDR4, dual M.2, USB-C Gen2, PCIe 4.0-ready graphics support and Gigabit LAN.
Skip it if
You need built-in Wi-Fi, DDR5 memory, AM5 processor support, 2.5GbE LAN or a full-size ATX motherboard with more expansion space.
Also consider
Consider a B550 board with integrated Wi-Fi if wireless networking is required, or an AM5 B650/B850 board if you are moving to newer Ryzen processors and DDR5 memory.
Features - ASRock - 90-MXBDK0-A0UAYZ
More Details
Product Code
03:141766
EAN Code
4710483931598
Manufacturer
ASRock