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White ATX motherboard with black heatsinks and Ryzen 5 5600 CPU in socket

ASUS

ASUS ROG STRIX B550-A GAMING with Ryzen 5 5600 AMD motherboard CPU combo

SKU CH-9A5M-X0GN6

ATX board with B550 chipset plus a 6-core 3.5 GHz Ryzen 5 5600, four DDR4 slots up to 128 GB, one PCIe 4.0 x16, one PCIe 3.0 x16, three PCIe 3.0 x1, six SATA 6Gb/s and two M.2 sockets

  • ProcessorRyzen 5000 Series
  • ChipsetAMD B550
  • Form factorATX
  • Memory slot count4 × 288pin (DDR4)
  • Supported memoryDDR4 5100(OC) / 4800(OC) / 4600(OC) / 4400(OC) / 4133(OC) /
  • Max supported RAM128 GB
  • 6-core Ryzen 5 5600 at 3.5 GHz for responsive multitasking
  • B550 chipset enables PCIe 4.0 x16 graphics bandwidth
  • Four DDR4 slots support up to 128 GB at 5100 MT/s OC
  • Three M.2 sockets (2242/2260/2280/22110) for fast storage expansion
  • ROG SupremeFX S1220A codec delivers 8-channel high-definition audio

ROG STRIX B550-A GAMING with Ryzen 5 5600

This combo pairs an ASUS ROG STRIX B550-A GAMING motherboard with an AMD Ryzen 5 5600 processor. The board uses the AMD B550 chipset and the CPU is a 6-core, 12-thread Vermeer part with a 65 W TDP. It targets builders who want a ready-matched platform for gaming or general work without selecting parts separately.

Who this suits and who should look elsewhere

The bundle suits anyone moving to Socket AM4 with a modern Zen 3 CPU and DDR4 memory. Builders needing integrated graphics must choose a different processor because the 5600 lacks an iGPU. Users requiring PCI Express 4.0 on the second x16 slot or more than three M.2 sockets should consider other chipsets.

Deciding specification — memory support

The motherboard runs DDR4 up to 5100 MT/s when overclocked with Ryzen 5000 series CPUs and supports a maximum of 128 GB across four slots in dual-channel mode. If your kit is rated above 3200 MT/s you must enable the appropriate profile in the BIOS to reach that speed.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $465.99
Pricier than about 64% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Product lineROG
Model nameSTRIX B550-A GAMING
Processor
ProcessorRyzen 5000 Series
ChipsetAMD B550
Memory
Memory slot count4 × 288pin (DDR4)
Supported memoryDDR4 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
Max supported RAM128 GB
Memory channelsDual Channel
ECC supportECC Memory (ECC mode) support varies by CPU.
BufferingUn-buffered
Storage
SATA ports6 x SATA 6Gb/s
M.2 slots3rd 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 and RAID support0/1/10
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipROG SupremeFX High Definition Audio CODEC S1220A
Sound channels8 Channels*
* Due to limitations in HDA bandwidth, 32-Bit/192 kHz is not supported for 8-Channel audio.
Connectivity
Ethernet controllerIntel I225-V
Maximum network speed2.5 Gbit/s
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16*
* Actual support may vary by CPU.
PCIe 3.0 x16 slots1 x PCIe 3.0 x16*
* Supports x4 mode.
* PCIEX16_2 shares bandwidth with PCIE x1_1, PCIE x1_2, and PCIE x1_3.
PCIe x1 slots3 x PCIe 3.0 x1
Onboard USB headers1 x USB 3.2 Gen 1 (up to 5 Gbit/s) 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)
Power
Power connectors1 × 24-pin EATX Power connector(s)
1 × 8-pin ATX 12 V Power connector(s)
1 × 4-pin ATX 12 V Power connector(s)
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
LightingRGB

Questions about this item

How can I confirm the Ryzen 5 5600 is running at its 3.5 GHz base clock after assembly?

Enter the UEFI BIOS or use a hardware monitoring tool in Windows 11 to verify the CPU reports a 3.5 GHz base frequency and 65 W TDP under load.

Which components are included in the combo and what must I purchase separately to complete the build?

The combo supplies the ROG STRIX B550-A GAMING motherboard and Ryzen 5 5600 processor only; you must add DDR4 memory, a graphics card, storage drives, a CPU cooler, a power supply and a case.

Which memory speed should I select from the supported DDR4 list for the best balance of performance and stability?

Choose a 3200 MT/s DDR4 kit; it is the highest JEDEC speed listed for Ryzen 5000 series CPUs and runs without manual overclocking.

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