Home » ASUS PRIME B550M-A WIFI II, motherboard, micro ATX, Socket AM4, AMD B550
ASUS PRIME B550M-A WIFI II, Motherboard, micro ATX, Socket AM4, AMD B550 Chipset, USB 3.2 Gen 1, USB 3.2 Gen 2, Gigabit LAN, Wi-Fi 6, Bluetooth, onboard graphics (CPU required), HD Audio (8-channel)
$201.63 inc GST
✓ In Stock - 30 available
✓ Free NZ Delivery
30 in stock
Ships from: Auckland or Christchurch
- Allow 1–2 days for delivery
- Add 1–2 days if you are rural
- No collections

SKU: AB31656
Categories: Components & Accessories, Motherboards, Motherboards (for AMD Processors)
Description
ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
- Tune it your way
- Cool to the Core
- Cooler by design – VRM heatsink and thermal pads
- Build on a solid foundation
- Little things make a big difference
- Outstanding audio – combined onboard features deliver elevated audio
- Audio shielding
- Separate layer for left and right tracks
- Premium audio capacitors
- Tune it your way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity. - Cool to the Core
Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads. - Cooler by design – VRM heatsink and thermal pads
A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance. - Build on a solid foundation
Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options. - Little things make a big difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look. - Outstanding audio – combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced. - Audio shielding
Separates analog/digital signal domains, significantly reducing multi-lateral interference. - Separate layer for left and right tracks
Ensures minimal crosstalk between audio paths. - Premium audio capacitors
Premium parts provide an immersive sound signature, with exceptional fidelity.
Main Specifications
Product Description | ASUS PRIME B550M-A WIFI II – motherboard – micro ATX – Socket AM4 – AMD B550 |
Product Type | Motherboard – micro ATX |
Chipset Type | AMD B550 |
Processor Socket | 1 x Socket AM4 |
Compatible Processors | Ryzen (supports Ryzen 3000 Series/ 4000 G-Series/ 5000 Series/ 5000 G-Series) |
Max RAM Size | 128 GB |
RAM Supported | 4 DIMM slots – DDR4, ECC, non-ECC, unbuffered |
Storage Ports | 4 x SATA-600 (RAID), 2 x M.2 |
USB / FireWire Ports | 2 x USB 3.2 Gen 2 + 4 x USB 3.2 Gen 1 + (2 x USB 3.2 Gen 1 + 4 x USB 2.0 via headers) |
Audio | HD Audio (8-channel) |
LAN | Gigabit Ethernet, 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
Extended Specifications
General
Product Type | Motherboard – micro ATX |
|---|---|
Chipset Type | AMD B550 |
Processor Socket | Socket AM4 |
Max Processors Qty | 1 |
Compatible Processors | Ryzen (supports Ryzen 3000 Series/ 4000 G-Series/ 5000 Series/ 5000 G-Series) |
Supported RAM
Max Size | 128 GB |
|---|---|
Technology | DDR4 |
Bus Clock | 2400 MHz, 2133 MHz, 2800 MHz, 3000 MHz, 2666 MHz, 2933 MHz, 3200 MHz, 3333 MHz (O.C.), 3400 MHz (O.C.), 3466 MHz (O.C.), 3600 MHz (O.C.), 3733 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4133 MHz (O.C.), 4200 MHz (O.C.), 4266 MHz (O.C.), 4333 MHz (O.C.), 4400 MHz (O.C.), 4466 MHz (O.C.), 4600 MHz (O.C.), 4800 MHz (O.C.), 4866 MHz (O.C.) |
Supported RAM Integrity Check | ECC, non-ECC |
Registered or Buffered | Unbuffered |
Features | Dual channel memory architecture |
Audio
Type | HD Audio (8-channel) |
|---|---|
Compliant Standards | High Definition Audio |
LAN
Network Interfaces | Gigabit Ethernet, 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|
Expansion / Connectivity
Expansion Slots | 1 x CPU 4 x DIMM 288-pin 1 x PCIe 4.0 x16 (PCIe 4.0 x16 mode (Ryzen 5000 Series/ 3000 Series CPUs); PCIe 3.0 x16 mode (Ryzen 5000 G-Series / 4000 G-Series CPUs)) 2 x PCIe 3.0 x1 |
|---|---|
Storage Interfaces | SATA-600 -connectors: 4 x 7pin Serial ATA – RAID 0 / RAID 1 / RAID 10 SATA-600 / PCIe 4.0 -connectors: 1 x M.2 SATA-600 / PCIe 3.0 -connectors: 1 x M.2 |
Interfaces | 1 x VGA 1 x DVI-D 1 x LAN (Gigabit Ethernet) 4 x USB 3.2 Gen 1 2 x USB 3.2 Gen 2 1 x audio line-in – mini-jack 1 x audio line-out – mini-jack 1 x microphone – mini-jack 1 x PS/2 keyboard / mouse 1 x HDMI |
Internal Interfaces | 4 x USB 2.0 – header 2 x USB 3.2 Gen 1 – header 1 x SPDIF out – header 1 x audio – header 1 x serial – header 1 x speaker – header |
Power Connectors | 24-pin main power connector, 8-pin ATX12V connector |
Features
BIOS Type | AMI |
|---|---|
BIOS Features | UEFI BIOS, ASUS EZ Flash 3 |
Sleep / Wake Up | Wake on LAN (WOL), wake on PME |
Hardware Features | Preboot eXecution Environment (PXE), LANGuard, jack retasking, audio jack detect technology, ASUS 5X Protection III, ASUS DIGI+ VRM, ASUS Overvoltage Protection, ASUS SafeSlot Core, ASUS Stainless Steel Back I/O, ASUS Q-Design, Q-DIMM, Q-Slot, ASUS Aura Sync, Armoury Crate, ASUS TurboV EVO, ASUS EPU (Energy Processing Unit), ASUS Fan Xpert 2+, ASUS EZ DIY, CrashFree BIOS 3 |
Miscellaneous
Included Accessories | ASUS Wi-Fi moving aerial, 1 x M.2 screw, I/O back cover |
|---|---|
Cables Included | 2 x Serial ATA cable |
Software Included | Drivers & Utilities, ASUS AURA Creator, ASUS AI Suite III, ASUS CPU-Z, ASUS AI Charger, DAEMON Tools, WinRAR, Norton AntiVirus (Trial), ASUS EZ Flash 3 |
Width | 24.4 cm |
Depth | 24.4 cm |
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