Basic Information

Supported CPU: AMD Ryzen 5000 Series / 5000 G-Series / 4000 G-Series / 3000 Series Desktop Processors
Chipset: AMD B550
BIOS: 256Mb Flash ROM, UEFI AMI BIOS
Form Factor: micro-ATX
Dimensions: 24.4cm × 24.4cm

Expansion Slots

For AMD Ryzen 5000 / 3000 Series CPUs

1 × PCIe 4.0 x16 slot (x16 mode)

For AMD Ryzen 5000 G-Series / 4000 G-Series CPUs

1 × PCIe 3.0 x16 slot (x16 mode)

AMD B550 Chipset

1 × PCIe 3.0 x16 slot (x4 mode)
1 × PCIe 3.0 x1 slot
Supports PCIe bifurcation for RAID on CPU
PCIEX16_2 runs at x2 mode when PCIEX1 slot is in use

M.2 Socket

Supports 2 × M.2 slots
Supports 4 × SATA 6Gb/s ports

Memory

Memory Type: DDR4
Memory Slots: 4 × DIMM
Maximum Memory: 128GB
Supported Speed:
4866(OC) / 4800(OC) / 4600(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) /
4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3733(OC) / 3600(OC) / 3466(OC) /
3400(OC) / 3333(OC) / 3200 / 3000 / 2933 / 2800 / 2666 / 2400 / 2133
Un-buffered Memory Supported

Graphics Output

1 × HDMI 2.1 (4K @ 60Hz)
1 × DisplayPort 1.2

USB & Connectivity

Rear USB (Total 8 Ports)

2 × USB 3.2 Gen 2 (1 × Type-A, 1 × Type-C)
4 × USB 3.2 Gen 1 Type-A
2 × USB 2.0 Type-A

Front USB (Total 6 Ports)

1 × USB 3.2 Gen 1 header (supports 2 ports)
2 × USB 2.0 headers (supports 4 ports)

LAN

TUF LANGuard

Wireless Communication

2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Bluetooth 5.2

Storage Support

For Ryzen 5000 / 3000 Series CPUs

M.2_1 (Key-M) PCIe 4.0 x4 / SATA
Supports 2242 / 2260 / 2280

For Ryzen 5000 G-Series / 4000 G-Series CPUs

M.2_1 (Key-M) PCIe 3.0 x4 / SATA

B550 Chipset

M.2_2 (Key-M) PCIe 3.0 x4 / SATA
Supports 2242 / 2260 / 2280 / 22110
4 × SATA 6Gb/s
RAID 0 / 1 / 10 Supported

Internal I/O Ports

Fan & Cooling

1 × 4-pin CPU Fan header
1 × 4-pin CPU OPT Fan header
2 × 4-pin Chassis Fan headers

Power

1 × 24-pin ATX Power Connector
1 × 8-pin 12V Power Connector

USB

1 × USB 3.2 Gen 1 header (2 ports)
2 × USB 2.0 headers (4 ports)

Miscellaneous

1 × Addressable Gen 2 Header
2 × Aura RGB Headers
1 × Clear CMOS Header
1 × COM Port Header
1 × Front Panel Audio Header
1 × Speaker Header
1 × SPI TPM Header (14-1 pin)
1 × System Panel Header

TPM

1 × SPI TPM Header (14-1 pin)

Special Features

ASUS TUF Protection

DIGI+ VRM with DrMOS
Enhanced DRAM Overcurrent Protection
ESD Guards
TUF LANGuard
Overvoltage Protection
SafeSlot
Stainless-Steel Back I/O

ASUS Q-Design

Q-DIMM
Q-LED
Q-Slot

Thermal Solution

M.2 Heatsink
VRM Heatsink Design

ASUS EZ DIY

BIOS FlashBack Button
BIOS FlashBack LED
ProCool

Aura Sync

Aura RGB Headers
Addressable Gen 2 Header

Bundled Software

Armoury Crate
Aura Creator
Aura Sync
Two-Way AI Noise Cancelation
AI Suite 3
Fan Xpert 2+
TurboV EVO
DTS Custom for Gaming Headsets
Norton Anti-Virus (Trial)
WinRAR
ASUS EZ Flash 3

Warranty

Manufacturing Warranty: 3 Years

Product Description
The Asus TUF GAMING B550M Plus WIFI II motherboard is built for durability, stability, and gaming performance. It features an upgraded power solution with 8+2 DrMOS power stages, efficient cooling, and premium components to ensure reliable performance for modern AMD Ryzen processors.

This motherboard supports high-speed DDR4 memory, PCIe 4.0 graphics, dual M.2 storage, and advanced connectivity options, making it ideal for gaming, content creation, and professional workloads.

Wi-Fi 6 & 2.5Gb LAN
Equipped with Wi-Fi 6 (802.11ax) and TUF LANGuard, this motherboard delivers faster wireless speeds, better performance in congested networks, and stable wired connectivity for competitive gaming.

Gaming Audio & AI Noise Cancelling
High-quality gaming audio with AI noise-cancelling technology ensures clear voice communication by reducing background noise such as keyboard and mouse sounds.

Connectivity & Gaming Look
With HDMI 2.1, DisplayPort 1.2, multiple USB 3.2 ports, and Aura Sync RGB lighting, this motherboard offers excellent connectivity and a premium gaming appearance.

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