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AMD B550 Ryzen AM4 Gaming ATX motherboard with PCIe® 4.0, teamed power stages, Intel® 2.5Gb Ethernet, WiFi 6 (802.11ax), dual M.2 with heatsinks, SATA 6 Gbps, USB 3.2 Gen 2 and Aura Sync RGB lighting

AMD AM4 socket: Ready for Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors

Best gaming connectivity: PCIe® 4.0-ready, dual M.2, USB 3.2 Gen 2 Type-C® plus HDMI™ 2.1 and DisplayPort 1.2 output support

Smooth networking: On-board WiFi 6 (802.11ax) and Intel® 2.5Gb Ethernet with ASUS LANGuard

Robust power solution: 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 make it easy to configure gaming builds

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 headers and Addressable Gen 2 RGB header

Industry-leading gaming audio: AI Noise-Canceling Microphone, SupremeFX S1220A codec, DTS® Sound Unbound™ and Sonic Studio III for immersive audi

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CPUAMD AM4 Socket 3rd Gen AMD Ryzen™ Processors

ChipsetAMD B550

Memory4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(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

4 x DIMM, Max. 128GB, DDR4 5100(O.C)/5000(O.C)/4800(O.C.)/4600(O.C)/4400(O.C)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3600(O.C.)/3466(O.C.)/3200/3000/2800/2666/2400/2133 MHz Memory

Next Generation AMD Ryzen PRO Processors 

OptiMem II

3rd Gen AMD Ryzen™ Processors

Dual Channel Memory Architecture

ECC Memory (ECC mode) support varies by CPU.

* Refer to for the Memory QVL (Qualified Vendors Lists).

Graphic1 x DisplayPort 1.2

1 x HDMI 2.1(4K@60HZ)

*Graphics specifications may vary between CPU types.

Integrated Graphics Processor

Multi-GPU SupportSupports AMD 2-Way CrossFireX Technology

Expansion SlotsAMD B550 Chipset

1 x PCIe 3.0 x16 (x4 mode) *

3 x PCIe 3.0 x1

1 x PCIe 4.0 x16 (x16 mode)

Storage1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)

AMD B550 Chipset : 

1 x M.2_2 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)*

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

3rd Gen AMD Ryzen™ Processors : 

6 x SATA 6Gb/s port(s)

Support Raid 0, 1, 10

LANIntel® I225-V 2.5Gb Ethernet


Wireless Data Network2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) support 1024QAM/OFDMA/MU-MIMO

Intel® Wi-Fi 6 AX200

Supports channel bandwidth: HT20/HT40/HT80/HT160

Supports dual band frequency 2.4/5 GHz

BluetoothBluetooth v5.1*

*BT 5.1 function will be ready in Windows 10 build 19041 or later.

AudioROG SupremeFX7.1-Channel High Definition Audio CODEC S1220A

- Audio Shielding

- Premium Japanese audio capacitors

- Audio Cover

- Optical S/PDIF in port(s) at back panel

- SupremeFX Shielding™ Technology

- Dual OP Amplifiers

- Impedance sense for front and rear headphone outputs

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

- High quality120dBSNR stereo playback outputand113dBSNR recording input

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

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

Audio Feature :

USB PortsFront USB Port ( Total 6 )

4 x USB 3.2 Gen 1 port(s)(4 x Type-A)

2 x USB 3.2 Gen 2 port(s)(1 x Type-A +1 x USB Type-C®)

Rear USB Port ( Total 8 )

2 x USB 3.2 Gen 1 port(s)

2 x USB 2.0 port(s)

4 x USB 2.0 port(s)

Software FeaturesROG Exclusive Software

- RAMCache III


- 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

- Aura Creator

- Aura Sync

- AI Noise Cancelling Microphone

AI Suite 3:




Fan Xpert 4

TurboV EVO

- EZ update




- ASUS CrashFree BIOS 3

- ASUS EZ Flash 3


ASUS Special FeaturesAura Sync

- Standard RGB header(s)

- Addressable Gen 2 RGB header(s)

ASUS Q-Design


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

- ASUS Q-Slot

ASUS Thermal Solution

- Aluminum M.2 heatsink


-BIOS FlashBack™ button

-BIOS FlashBack™ LED

-Clear CMOS header


-Pre-mounted I/O shield

- SafeSlot

Back I/O Ports1 x BIOS FlashBack™ Button(s)

4 x USB 3.2 Gen 1

2 x USB 3.2 Gen 2 (1 x Type-A+1 x USB Type-C®)

1 x Intel® I225-V 2.5Gb Ethernet

ASUS Wi-Fi module (Wi-Fi 802.11 a/b/g/n/ac and Bluetooth v5.0)

1 x DisplayPort

1 x Optical S/PDIF out

5 x Audio jack(s)

1 x HDMI

2 x USB 2.0

Internal I/O Ports1 x M.2 Socket 1 with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)

1 x M.2 Socket 2 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)

1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s)

1 x Thunderbolt header(s)

1 x CPU Fan connector(s)

1 x CPU OPT Fan connector(s)

3 x Chassis Fan connector(s)

1 x AIO_PUMP connector

1 x AAFP connector

2 x Aura RGB Strip Header(s)

2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)

6 x SATA 6Gb/s connector(s)

1 x 24-pin EATX Power connector(s)

1 x 8-pin ATX 12V Power connector(s)

1 x 4-pin ATX 12V Power connector(s)

1 x System panel(s)

1 x Thermal sensor connector(s)

1 x Clear CMOS jumper(s)

1 x Addressable Gen 2 header(s)

Accessories1 x Wi-Fi moving antenna

1 x M.2 SSD screw package(s)

1 x M.2 Rubber Package(s)

4 x SATA 6Gb/s cable(s)

1 x ROG Strix stickers

1 x Cable ties pack(s)

1 x ROG Thank you card

User´s manual

1 x Supporting DVD

1 x Extension cable for Addressable LED


ManageabilityWOL by PME, PXE

Operating SystemWindows® 10 64-bit

Form Factor12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )

ATX Form Factor

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

* When the M.2_2 Socket 3 is populated , SATA6G_5/6 ports will be disabled.