AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
* Refer to www.asus.com for CPU support list.

B550

4 x DIMM, Max. 128GB, DDR4 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*

Dual Channel Memory Architecture

* ECC Memory (ECC mode) support varies by CPU.

* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.

1 x DisplayPort**

** Supports max. 4K@60Hz as specified in DisplayPort 1.2.

*** Supports 4K@60Hz as specified in HDMI 2.1.

AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors

1 x PCIe 4.0 x16 slot (supports x16 mode)*

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

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

AMD B550 Chipset

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

1 x PCIe 3.0 x1 slot**

* Support PCIe bifurcation for RAID on CPU function.

** PCIEX16_2 will run x2 mode when PCIEX1 slot is used.

Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen™ 5000 Series/ 3000 Series Desktop ProcessorsM.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop ProcessorsM.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)AMD B550 ChipsetM.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)4 x SATA 6Gb/s ports

Support RAID 0, 1, 10

TUF LANGuard

2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) + BT5.2

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 (2 x Type-A)Front USB:Total 6 ports
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports2 x USB 2.0 headers support additional 4 USB 2.0 ports

Realtek 7.1 Surround Sound High Definition Audio CODEC

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

– Supports up to 24-Bit/192 kHz playback

Audio Features

– Audio Shielding

– Rear optical S/PDIF out port

– Premium audio capacitors

– Dedicated audio PCB layers

– Audio cover

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, one port can be switched to USB BIOS FlashBack™)

2 x USB 2.0 ports (2 x Type-A)

1 x DisplayPort

1 x HDMI^® port

1 x Wi-Fi Module

1 x Realtek 2.5Gb Ethernet port

5 x Audio jacks

1 x Optical S/PDIF out port

1 x BIOS FlashBack™ button

1 x PS/2 Keyboard/Mouse combo port

Fan and Cooling related

1 x 4-pin CPU Fan header

1 x 4-pin CPU OPT Fan header

2 x 4-pin Chassis Fan headers

Power related

1 x 24-pin Main Power connector

1 x 8-pin +12V Power connector

Storage related

2 x M.2 slots (Key M)

4 x SATA 6Gb/s ports

USB

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 COM Port header

1 x Front Panel Audio header (AAFP)

1 x Speaker header

1 x SPI TPM header (14-1pin)

1 x 10-1 pin System Panel header

ASUS TUF PROTECTION

– DIGI+ VRM (Digital power design 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 (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])

– Q-Slot

ASUS 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

ASUS Exclusive Software

Armoury Crate

– Aura Creator

– Aura Sync

– Two-Way AI Noise Cancelation

AI Suite 3

– Performance And Power Saving Utility

– EZ update

TUF GAMING CPU-Z

AI Charger

DAEMON Tools

DTS Custom for GAMING Headsets

Norton Anti-virus software (Free Trial version)

WinRAR

UEFI BIOS

ASUS EZ DIY

– ASUS CrashFree BIOS 3

– ASUS EZ Flash 3

– ASUS UEFI BIOS EZ Mode

256 Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables

2 x SATA 6Gb/s cables

Miscellaneous

1 x ASUS Wi-Fi moving antennas

1 x I/O Shield

1 x M.2 Rubber package

1 x M.2 SSD screw package

1 x TUF Gaming sticker

Installation Media

1 x Support DVD

Documentation

1 x TUF Certification card

1 x User guide

Windows 10 64bit
Windows^® 11 readyWindows^® 10 64-bit

microATX
24.4cm x 24.4cm