AMD B550 Ryzen AM4 Gaming ATX motherboard with PCIe® 4.0, 12+2 teamed power stages, Intel® 2.5 Gb Ethernet, WiFi 6E, Two-Way AI Noise Cancelation, dual M.2 slots with heatsinks, SATA 6 Gbps, USB 3.2 Gen 2 and Aura Sync RGB lighting


AM4 socket: Ready for AMD Ryzen™ 3000 and 5000 series, plus 5000 and 4000 G-series desktop processors
Best gaming connectivity: PCIe® 4.0-ready, dual M.2 slots, USB 3.2 Gen 2 Type-C®, plus HDMI® 2.1 and DisplayPort™ 1.2 output
Smooth networking: On-board WiFi 6E (802.11ax) and Intel® 2.5 Gb Ethernet with ASUS LANGuard
Robust power solution: 12+2 teamed power stages with ProCool power connector, high-quality alloy chokes and durable capacitors
Renowned software: Intuitive dashboards for UEFI BIOS and ASUS AI Networking for easy configuration
DIY-friendly design: Includes pre-mounted I/O shield, BIOS FlashBack™, Q-LEDs and SafeSlot
Unmatched personalization: ASUS-exclusive Aura Sync RGB lighting, including Aura RGB and addressable Gen 2 RGB headers
Industry-leading gaming audio: Two-Way AI Noise Cancelation, SupremeFX S1220A codec, DTS® Sound Unbound™ and Sonic Studio III for immersive sound

CPU
AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
*Refer to www.asus.com for the AMD® CPU support list.
Chipset
B550
Memory
AMD Ryzen™ 5000 and 3000 Series Desktop Processors

 
4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4666(O.C.)/4600(O.C.)/4400(O.C.)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3200/3000/2933/2800/2666/2400/2133 MHz, Un-buffered Memory *

 
AMD Ryzen™ 5000 and 4000 G-Series Processors

 
4 x DIMM, Max. 128GB, DDR4 5100(O.C)/4866(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3600(O.C.)/3466(O.C.)/3200/3000/2800/2666/2400/2133 MHz, Un-buffered Memory *

 
ECC Memory (ECC mode) support varies by CPU.

 
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Graphics
1 x DisplayPort 1.2

 
1 x HDMI® 2.1

 
*Graphics specifications may vary between CPU types.

Expansion Slots
AMD Ryzen™ 5000 and 3000 Series/ 5000 and 4000 G-Series Desktop Processors

 
1 x PCIe 4.0 x16 SafeSlot (supports x16 mode)

 
AMD B550 chipset

 
1 x PCIe 3.0 x16 slot (supports x4 mode)*

 
3 x PCIe 3.0 x1 slots

 
*Share bandwidth with PCIe3.0 x1_1, PCIe3.0 x1_2, PCIe3.0 x1_3

Storage
Supports 2 x M.2 slots and 6 x SATA 6Gb/s ports
Total supports 2 x M.2 slots and 6 x SATA 6Gb/s ports

 
AMD Ryzen™ 5000 and 3000 Series/ 5000 and 4000 G-Series Desktop Processors

 
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes)

 
AMD B550 Chipset:

 
M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)*

 
6 x SATA 6Gb/s ports

 
Support RAID 0, 1, 10

 
* When the M.2_2 Slot is populated , SATA6G_5/6 ports will be disabled.

Ethernet
1 x Intel® 2.5Gb Ethernet
1 x Intel® I225-V 2.5Gb Ethernet

 
ASUS LANGuard

Wireless & Bluetooth
Wi-Fi 6E

 
2x2 Wi-Fi 6E (802.11 a/b/g/n/ac/ax)

 
Supports 2.4/5/6GHz frequency band*

 
Bluetooth v5.2

 
* WiFi 6E 6GHz regulatory may vary between countries, and function will be ready in Windows 11 or later.

USB
Rear USB:
Total 8 ports
2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C®)

 
4 x USB 3.2 Gen 1 ports (4 x Type-A)

 
2 x USB 2.0 ports

Front USB:
Total 6 ports
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports

 
2 x USB 2.0 headers support additional 4 USB 2.0 ports

Audio
ROG SupremeFX 7.1-Channel High Definition Audio CODEC S1220A

 
- Impedance sense for front and rear headphone outputs

 
- Jack-detection, Multi-streaming, Front Panel Jack-retasking

 
- High quality 120 dB SNR stereo playback output and 113 dB SNR recording input

 
- Supports up to 32-Bit/192kHz playback*

 
Audio Features

 
- SupremeFX Shielding Technology

 
- Dual OP Amplifiers

 
- Premium audio capacitors

 
- Audio cover

 
* Due to limitations in HDA bandwidth, 32-Bit/192 kHz is not supported for 8-Channel audio.

Back Panel I/O Ports
2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C®)

 
4 x USB 3.2 Gen 1 ports (4 x Type-A)

 
2 x USB 2.0 ports

 
1 x Wi-Fi Module

 
1 x DisplayPort

 
1 x HDMI® port

 
1 x Intel® I225-V 2.5G Ethernet

 
1 x Optical S/PDIF out

 
5 x Audio jacks

 
1 x BIOS FlashBackTM button
Internal I/O Connectors
Fan and cooling related

 
1 x 4-Pin AIO_Pump header

 
1 x 4-Pin CPU fan header

 
1 x 4-Pin CPU_OPT fan header

 
3 x 4-Pin Chassis fan headers

 
Power related

 
1 x 24-pin main power connector

 
1 x 8-pin +12V power connector

 
1 x 4-pin +12V power connector

 
Storage related

 
2 x M.2 slots (Key M)

 
6 x SATA 6Gb/s ports

 
USB ports

 
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports

 
2 x USB 2.0 headers support additional 4 USB 2.0 ports

 
Miscellaneous

 
1 x Addressable Gen 2 header

 
2 x AURA RGB headers

 
1 x Clear CMOS header

 
1 x Front panel audio header (AAFP)

 
1 x 20-3 pin System Panel header with Chassis intrude function

 
1 x Thermal sensor header

 
1 x Thunderbolt™ header

Special Features
ASUS Q-Design

 
- ASUS Q-DIMM

 
- ASUS Q-LED (DRAM [yellow],CPU [red],  VGA [white], Boot Device [yellow green)

 
- ASUS Q-Slot

 
ASUS Thermal Solution

 
- M.2 heatsink

 
AURA Sync

 
- AURA RGB headers

 
- Addressable Gen 2 RGB headers

 
ASUS EZ DIY

 
- BIOS FlashBack™ button

 
- BIOS FlashBack™ LED

 
- Clear CMOS header

 
- ProCool

 
- Pre-mounted I/O shield

 
- SafeSlot
Software Features
ROG Exclusive Software

 
- RAMCache III

 
- ROG CPU-Z

 
- GameFirst VI

 
- Sonic Studio III + Sonic Studio Virtual Mixer

 
- Sonic Radar III

 
- DTS® Sound Unbound

 
- Overwolf

 
- Anti-virus software

 
ASUS Exclusive Software Features

 
Armoury Crate

 
- AIDA64 Extreme (60 days free trial)

 
- Aura Creator

 
- Aura Sync

 
- Two-Way AI Noise Cancelation

 
AI Suite 3:

 
- Performance And Power Saving Utility

 
EPU

 
DIGI+ VRM

 
Fan Xpert 4

 
TurboV EVO

 
- EZ update

 
WinRAR

 
DAEMON Tools

 
Norton Anti-virus software (Free Trial version)

 
UEFI BIOS

 
ASUS EZ DIY

 
- ASUS CrashFree BIOS 3

 
- ASUS EZ Flash 3

 
- ASUS UEFI BIOS EZ Mode

BIOS
256 Mb Flash ROM, UEFI AMI BIOS

Manageability
WOL by PME, PXE

Accessories
Cables

 
1 x Addressable RGB extension cable

 
4 x SATA 6Gb/s cables

 
Miscellaneous

 
1 x ASUS Wi-Fi moving antennas

 
1 x Cable ties pack

 
1 x M.2 Rubber Package

 
1 x M