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Designed for those seeking to get the most out of their build, ROG Strix B550 Gaming series motherboards offer a feature-set usually found in the higher-end ROG Strix X570 Gaming series, including the latest PCIe 4.0 connectivity. Offering robust power delivery and effective cooling, ROG Strix B550-A Gaming is well-equipped to handle 3rd Gen AMD Ryzen CPUs. As an added bonus, outstanding performance is complemented by a stunning silver-and-white finish and cyberpunk-inspired aesthetics that present a standout look.

CPU
  • AMD AM4 Socket for AMD Ryzen 5000 Series / 4000 G-Series / 3000 Series Desktop Processors
Chipset
  • AMD B550
Memory
  • AMD Ryzen 5000 Series / 3000 Series Desktop Processors
    • 4 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
  • AMD Ryzen 4000 G-Series Processors
    • 4 x DIMM, Max. 128GB, DDR4 5100(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 Un-buffered Memory
  • OptiMem II
  • Dual Channel Memory Architecture
  • ECC Memory (ECC mode) support varies by CPU.
Onboard Graphics
  • 1 x HDMI 2.1(4K@60HZ)
  • 1 x DisplayPort  1.2
    • Graphics specifications may vary between CPU types
Audio

ROG SupremeFX 8-Channel High Definition Audio CODEC S1220A

  • Dual OP Amplifiers
  • Impedance sense for front and rear headphone outputs
  • Supports: 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
    • Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 8-Channel audio.
  • Audio Feature:
    • SupremeFX Shielding Technology
    • Gold-plated jacks
    • Optical S/PDIF in port(s) at back panel
    • Audio Shielding
    • Premium Japanese audio capacitors
    • Audio Cover
LAN

Intel I225-V 2.5Gb Ethernet

  • ASUS LANGuard
Wireless Communication Module

None

Expansion Slots

AMD Ryzen 5000 Series / 3000 Series Desktop Processors

  • 1 x PCIe 4.0 x16 (x16 mode)

AMD Ryzen 4000 G-Series Processor

  • 1 x PCIe 3.0 x16 (x16 mode)

AMD B550 Chipset

  • 1 x PCIe 3.0 x16 (x4 mode)
  • 3 x PCIe 3.0 x1
Storage Interface

Total supports 2 x M.2 slot(s) and 6 x SATA 6Gb/s ports

AMD Ryzen 5000 Series/ 3000 Series Desktop 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 RyzenTM 4000 G-Series Processor:

1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 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)
  • 6 x SATA 6Gb/s port(s)
    • Support Raid 0, 1, 10
USB

Rear USB Port ( Total 8 )

  • 2 x USB 3.2 Gen 2 port(s)(1 x Type-A +1 x USB Type-C)
  • 4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
  • 2 x USB 2.0 port(s)

Front USB Port ( Total 6 )

  • 2 x USB 3.2 Gen 1 port(s)
  • 4 x USB 2.0 port(s)
Internal I/O 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 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)
  • 1 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)
  • 6 x SATA 6Gb/s connector(s)
  • 1 x Thunderbolt header(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)
Back Panel Connectors
  • 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
I/O Controller

Not Specified

H/W Monitoring
  • Voltage detection
  • Temperature detection
  • Fan speed detection
  • Overheating warning
  • Fan fail warning
  • Fan speed control
BIOS
  • 256 Mb Flash ROM, UEFI AMI BIOS
Unique 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
Bundled Software

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
Operating System
  • Windows 10 64-bit
Form Factor
  • ATX Form Factor, 30.5cm x 24.4cm

Manufacturer
Manufacturer's WebsiteLink *
Product WebsiteLink *
Warranty Information
Warranty Duration3 Years
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ASUS ROG STRIX B550-A GAMING, AMD B550 Chipset, Socket AM4, DDR4, ATX Desktop Motherboard

- Socket AM4, AMD B550 Chipset
- Supports Ryzen 3000 to 5000 Series Processors
- 4 x DDR4 DIMM Slots, Up To 128GB, DDR4-5100 (OC)
- 1 x PCIe 4.0 x16 Slot
- 1 x PCIe 3.0 x16 Slot (x4 electrical)
- 3 x PCIe 3.0 x1 Slots
- 1 x M.2 PCIe 4.0 NVMe Slot
- 1 x M.2 PCIe 3.0 NVMe Slot
- 6 x SATA 3.0 Ports
- 2.5Gbps LAN
- 1 x Rear USB Type-C 10Gb/s
- 1 x Rear USB Type-A 10Gb/s, 4 x Rear USB Type-A 5Gb/s
- Form Factor: ATX
- 3 Year Warranty

  • Product Code: 90MB15J0-M0EAY0
  • Availability: Out Of Stock leadtimeTooltip Lead Times:
    • In Stock with Progenix: Ready for collection/dispatch once payment clears. The cut-off for same-day dispatch is 12:00pm on business days.
    • In Stock with Supplier: 1-3 business days until dispatched or ready for collection
    • Out Of Stock: Contact us to see if this item will be restocked.
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