






ASUS Prime B550M-A WiFi II AM4 Micro-ATX DDR4 128 GB Motherboard
* PC Pro Guide may earn a small commission when you buy through links on our site. (Affiliate disclosure)
* Prices and availability can change without notice. The price and stock status displayed on Amazon at the time you complete your purchase are the ones that apply.
Description
The ASUS Prime B550M-A WiFi II is a Micro-ATX motherboard for AM4. It supports DDR4 memory up to 4866 MT/s (OC).
- AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs
- Ultrafast Connectivity: 1x PCIe 4.0 x16 SafeSlot, WiFi 6 (802.11ax), 1Gb LAN, dual M.2 slots (NVMe SSD)-one with PCIe 4.0 x4 connectivity, USB 3.2 Gen 2 Type-A , HDMI 2.1 (4K@60HZ), D-Sub & DVI
- Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2 utility
- 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
- Boosted Memory Performance: ASUS OptiMem proprietary trace layout allows memory kits to operate at higher frequencies with lower voltages to maximize system performance.
- Enhanced Power Solution: 8+1 DrMOS power stages with high-quality alloy chokes and durable capacitors to provide reliable power for the last AMD high-count-core CPUs
- Aura Sync RGB: Synchronizable LED effects across a wide range of compatible PC gear, plus RGB LED and Addressable Gen 2 RGB headers for greater customization
Specifications
Manufacturer | ASUS |
---|---|
Model Number | PRIME B550M-A WIFI II 90MB19X0-M0AAY0 90MB19X0-M0EAY0 |
Launch Date | July 2022 |
CPU Socket | AMD Socket AM4 |
Chipset Model | Intel B550 |
Board Size / Form Factor | Micro-ATX |
Supported Memory Type | DDR4 |
DIMM Slots | 4 |
Maximum RAM Capacity | 128 GB |
Valid DDR4 Speeds | DDR4-2133 / DDR4-2400 / DDR4-2666 / DDR4-2800 / DDR4-2933 / DDR4-3000 / DDR4-3200 / DDR4-3333 / DDR4-3400 / DDR4-3466 / DDR4-3600 / DDR4-3733 / DDR4-3866 / DDR4-4000 / DDR4-4133 / DDR4-4200 / DDR4-4266 / DDR4-4333 / DDR4-4400 / DDR4-4600 / DDR4-4800 / DDR4-4866 (OC) |
ECC Memory Support | No |
Expansion Slots (PCIe) | 1 × PCIe x16, 2 × PCIe x1 |
PCIe x16 (Qty) | 1 |
PCIe x4 (Qty) | 0 |
PCIe x1 (Qty) | 2 |
M.2 Slot Count | 2 × M.2 |
M.2 Device Compatibility | 2242 / 2260 / 2280 / 22110 - M Key, 2242 / 2260 / 2280 - M Key |
SATA III Ports | 4 × SATA 6Gbps |
SATA Express Ports | 0 |
Wired Networking (LAN) | GbE LAN |
Onboard Wi-Fi | Yes |
Wi-Fi Standard | 6 (802.11ax) |
Rear-Panel USB | USB 3.2 Gen1, USB 2.0 |
Internal USB 3.2 Gen 2x2 Headers | 0 |
Internal USB 3.2 Gen 2 Headers | 0 |
Internal USB 3.2 Gen 1 Headers | 1 |
Internal USB 2.0 Headers | 2 |
NVIDIA SLI | No |
AMD CrossFire | No |
RAID Capability | Yes |
Back-Connect Layout | No |
Manufacturer Part Number (MPN) | PRIME B550M-A WIFI II |
SKU Code | PRIME B550M-A WIFI II |
GTIN / EAN | 195553309752 |