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Micro-ATX motherboard and Ryzen 5 5600X CPU in socket, matte black PCB with grey heatsinks

ASUS

ASUS TUF GAMING B450M-PRO S AMD motherboard with Ryzen 5 5600X

SKU CH-RNVM-N05H5

Micro-ATX B450 board paired with a 6-core 3.7 GHz Ryzen 5 5600X, four DDR4 slots up to 128 GB, one PCIe 3.0 x16, one PCIe 2.0 x16, one PCIe 2.0 x1.

  • ProcessorRyzen 5000 Series
  • ChipsetAMD B450
  • Form factorMicro ATX
  • Memory slot count4 × 288pin (DDR4)
  • Supported memoryDDR4 4400(OC) / 3533(OC) / 3466(OC) / 3200(OC) / 3000(OC) /
  • Max supported RAM128 GB
  • 6-core Ryzen 5600X delivers 3.7 GHz performance for demanding workloads
  • B450 chipset supports Ryzen 5000 series processors on AM4 socket
  • Four DDR4 slots accept up to 128 GB dual-channel memory at 4400 OC speeds
  • Realtek ALC S1200A codec provides 7.1-channel high-definition audio output
  • Three M.2 sockets fit 2242, 2260 and 2280 drives with PCIe 3.0 x4 or SATA modes

TUF B450M Micro-ATX with Ryzen 5 5600X

This bundle pairs the ASUS TUF GAMING B450M-PRO S motherboard with a Ryzen 5 5600X processor. The board uses the AMD B450 chipset and fits Micro-ATX cases. The CPU is a 6-core Vermeer part running at 3.7 GHz with a 65W TDP. It supports Windows 11 and targets gamers and builders who want a compact AM4 platform.

AM4 socket DDR4 memory M.2 bandwidth sharing

Verify that your power supply provides an 8-pin EPS connector for the CPU. The board offers four 288-pin DDR4 slots supporting speeds up to 4400(OC) and a maximum of 128GB in dual-channel mode. Only one PCI Express 3.0 x16 slot is wired from the CPU; the second x16 slot runs at 2.0 and shares bandwidth with the second M.2 socket, so using both disables M.2_2.

Military-grade components Realtek S1200A audio

TUF components include certified chokes, capacitors and MOSFETs rated for durability. The Realtek ALC S1200A codec delivers 7.1-channel high-definition audio. Four SATA 6Gb/s ports and one M.2 slot supporting 2242, 2260 and 2280 drives handle storage. The single PCI Express 2.0 x1 slot adds room for a Wi-Fi card or other add-in board.

How it compares

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

Price $256.99
Typical for this category: the median of 1,906 items is $224.49.

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Specifications

Product
Brand nameASUS
Model nameTUF GAMING B450M-PRO S
Processor
ProcessorRyzen 5000 Series
ChipsetAMD B450
Memory
Memory slot count4 × 288pin (DDR4)
Supported memoryDDR4 4400(OC) / 3533(OC) / 3466(OC) / 3200(OC) / 3000(OC) / 2800(OC) / 2666 / 2400 / 2133 *
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Max supported RAM128 GB
Memory channelsDual Channel
ECC supportECC Memory (ECC mode) support varies by CPU.
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
SATA and RAID support0/1/10
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipRealtek ALC S1200A Surround Sound High Definition Audio CODEC
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek RTL8125B
Maximum network speed2.5 Gbit/s
Ports & slots
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16*
* Actual support may vary by CPU.
PCIe x16 slotsNone
PCIe x1 slots1 x PCI Express 2.0 x1
Rear panel ports1 x PS/2 keyboard/mouse combo port(s)
1 x DisplayPort
1 x HDMI
1 x LAN (2.5G) port(s)
2 x USB 3.2 Gen 2 (teal blue) (1 x Type-A+1 x USB Type-C)
4 x USB 3.2 Gen 1 (blue) Type-A
2 x USB 2.0
1 x Optical S/PDIF out
5 x Audio jack(s)
1 x BIOS FlashBack Button(s)
HDMI ports1 x HDMI
USB 3.0 ports3 x USB 3.0
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 EATX 12 V Power connectors
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
PCI express 2.0 x161 x PCI Express 2.0 x16 *
* PCIEX16_2 shares bandwidth with M.2_2. When PCIEX16_2 runs, M.2_2 will be disabled.
LightingRGB

Questions about this item

Will the board run a Ryzen 5 5600X without a BIOS update?

The board is sold as a combo with the Ryzen 5 5600X, so it should ship with a compatible BIOS for that CPU.

What is the maximum memory capacity and speed the board supports?

Four DDR4 slots support up to 128 GB, with overclocked speeds up to 4400 and native speeds down to 2133.

Can I use two M.2 drives and both PCIe x16 slots at the same time?

The second PCIe 2.0 x16 slot shares bandwidth with the M.2 slot; using the second slot disables that M.2 connection.

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