Description

Model

Brand ASUS

Series ROG

Model STRIX B550-A GAMING

Supported CPU

CPU Socket Type AM4

CPU Type Supports AMD Ryzen 5000 Series / 4000 G-Series / 3000 Series Processors

* Refer to www.asus.com for CPU support list.

* BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU.

Chipsets

Chipset AMD B550

Memory

Number of Memory Slots 4x288pin (DDR4)

Memory Standard DDR4 5100(OC) / 4800(OC) / 4600(OC) / 4400(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3600(OC) / 3466(OC) / 3200 / 3000 / 2800 / 2666 / 2400 / 2133 (AMD Ryzen 4000 G-Series Processors)

DDR4 4600(OC) / 4400(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3600(OC) / 3466(OC) / 3200 / 3000 / 2800 / 2666 / 2400 / 2133

Maximum Memory Supported 128GB

Channel Supported Dual Channel

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

Buffer Supported Un-buffered

Expansion Slots

PCI Express 4.0 x16 1 x PCI Express 4.0 x16*

* Actual support may vary by CPU.

PCI Express 3.0 x16 1 x PCIe 3.0 x16*

* Supports x4 mode.

* PCIEX16_2 shares bandwidth with PCIE x1_1, PCIE x1_2, and PCIE x1_3.

PCI Express x1 3 x PCIe 3.0 x1

Storage Devices

SATA 6Gb/s 6 x SATA 6Gb/s

M.2 3rd Gen AMD Ryzen Processors:

1 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 x4 mode)*

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

SATA RAID 0/1/10

Onboard Video

Onboard Video Chipset Supported only by CPU with integrated graphic

Onboard Audio

Audio Chipset ROG SupremeFX High Definition Audio CODEC S1220A

Audio Channels 8 Channels*

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

Onboard LAN

LAN Chipset Intel I225-V

Max LAN Speed 10/100/1000/2500Mbps

Rear Panel Ports

Back I/O Ports 1 x Intel I225-V 2.5Gb Ethernet

1 x DisplayPort

1 x HDMI

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

4 x USB 3.2 Gen 1

2 x USB 2.0

1 x Optical S/PDIF out

1 x BIOS FlashBack Button(s)

5 x Gold-plated audio jacks

Internal I/O Connectors

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

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

Other Connectors 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)

1 x Addressable Gen 2 header(s)

1 x Thunderbolt header(s)

1 x System panel(s)

1 x Thermal sensor connector(s)

1 x Clear CMOS jumper(s)

Physical Spec

Form Factor ATX

LED Lighting RGB

Dimensions (W x L) 12.0" x 9.6"

Power Pin 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)

Windows 11 Compatibility

Windows 11 Supported

Features

Features Multi-GPU Support:

Supports AMD 2-Way CrossFireX Technology

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

- Aura Creator

- Aura Sync

- AI Noise Cancelling Microphone

AI Suite 3:

- PPSU

EPU

DIGI+ VRM

Fan Xpert 4

TurboV EVO

- EZ update

WinRAR

UEFI BIOS

ASUS EZ DIY

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 3

- ASUS UEFI BIOS EZ Mode

ASUS Special Features:

Aura Sync

- Standard RGB header(s)

- Addressable Gen 2 RGB header(s)

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

- Aluminum M.2 heatsink

ASUS EZ DIY

- BIOS FlashBack button

- BIOS FlashBack LED

- Clear CMOS header

- ProCool

- Pre-mounted I/O shield

- SafeSlot

BIOS:

256MB Flash ROM, UEFI AMI BIOS

Manageability:

WOL by PME, PXE

Operating System:

Windows 10 64-bit

Packaging

Package Contents Accessories:

User's manual

4 x SATA 6Gb/s cable(s)

1 x Supporting DVD

1 x ROG Strix stickers

1 x Cable ties pack(s)

1 x Extension cable for Addressable LED

1 x ROG Thank you card

1 x M.2 SSD screw package(s)

1 x M.2 Rubber Package(s)