PRIME B550M-A (WI-FI) ASUS WI-FI AM4 Micro-ATX Motherboard

PRIME B550M-A Specifications

ASUS PRIME B550M-A Micro-ATX Motherboard

Manufacturer: ASUS
Manufacturer Model: PRIME B550M-A
Product Line: ASUS PRIME
Product Series: B550
Product Type: Micro-ATX Motherboard
Product Name: ASUS PRIME B550M-A

KEY FEATURES:
CPU Socket: AMD AM4 (supports Ryzen 3000 / 4000 G-Series / 5000 Series)
Chipset: AMD B550
Memory: 4 × DDR4 DIMM, up to 128 GB, dual-channel
Memory Speeds (OC): DDR4 4866 / 4800 / 4600 / 4466 / 4400 / 4333 / 4266 / 4200 / 4133 / 4000 / 3866 / 3733 / 3600 / 3466 / 3400 / 3333 / 3200 / 3000 / 2933 / 2800 / 2666 / 2400 / 2133 MHz
ECC Memory: Supported in ECC mode (depends on CPU)
Graphics Output: 1 × HDMI 2.1 (4K @ 60 Hz)
Expansion Slots:

1 × PCIe 4.0 ×16 (runs x16)

1 × PCIe 3.0 ×16 (x16 mode)

2 × PCIe 3.0 ×1
Storage:

2 × M.2 sockets:

M.2_1: PCIe 4.0 ×4 & SATA (Type 2242/2260/2280/22110)

M.2_2: PCIe 3.0 ×4 & SATA (Type 2242/2260/2280)

4 × SATA III (6 Gb/s)
RAID Support: RAID 0, 1, 10 for SATA
LAN: Realtek RTL8111H 1 Gb Ethernet
Audio: Realtek ALC887/897 7.1‑channel HD Audio, audio shielding, premium capacitors
USB Ports:

Rear: 2 × USB 3.2 Gen 2 (Type-A), 4 × USB 3.2 Gen 1 (Type-A)

Internal: 4 × USB 2.0 headers, 2 × USB 3.2 Gen 1 headers
Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, Fan Xpert 2+ control
RGB: On‑board addressable Gen 2 Aura Sync RGB header
Protection: 5X Protection (ESD guards, overvoltage protection, SafeSlot, etc.)

PERFORMANCE:
Maximum Memory Speed: Up to DDR4-4866 (OC)
PCIe Bandwidth: PCIe 4.0 supported on the first ×16 slot (with compatible CPU)
CPU Support: Ryzen 3000, 4000 G-Series, 5000 Series

ENVIRONMENTAL & RELIABILITY:
Operating Temperature / Humidity / Shock / Vibration: Not explicitly specified
Reliability Features: DIGI+ VRM, robust power delivery, hybrid fan headers, thermal protection

PHYSICAL:
Form Factor: Micro-ATX (24.4 × 24.4 cm)
BIOS: UEFI AMI BIOS (256 Mb)
Weight: Not explicitly specified
Color: Standard motherboard color scheme