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Dark green Micro ATX board with black heatsinks and reinforced PCIe slot

ASUS

ASUS TUF GAMING B450M-PRO S AMD motherboard

SKU CH-MN7T-J0K5Q

Micro-ATX AMD B450 board with 8+2 DrMOS power stages, 2.5Gb LAN, BIOS FlashBack, AI noise-cancelling microphone, USB 3.2 Gen 2 Type-A and Type-C, HDMI, four SATA 6Gb/s ports, two M.2 slots.

  • CPU Socket TypeAM4
  • CPU TypeRyzen / Athlon Series
  • ChipsetAMD B450
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 2666
  • Maximum Memory Supported128GB
  • Supports 3rd, 2nd and 1st Gen Ryzen CPUs
  • 128 GB DDR4 maximum capacity across four slots
  • 5 Gb LAN for faster wired networking
  • AI noise-cancelling microphone input for clearer voice chat
  • BIOS FlashBack enables updates without a CPU installed

Compact AM4 Platform

The ASUS TUF GAMING B450M-PRO S is a Micro-ATX motherboard built on the AMD B450 chipset for AM4 socket processors. It supports 1st, 2nd and 3rd Generation Ryzen CPUs as well as Athlon APUs with Radeon Vega graphics. The board delivers an 8+2 DrMOS power stage design, 2.5Gb LAN, USB 3.2 Gen 2 Type-A and Type-C, plus HDMI output for APU video.

Build Fit

This board suits compact gaming or workstation builds that need dual-channel DDR4 up to 128GB and two M.2 slots alongside four SATA 6Gb/s ports. It also fits users who value BIOS FlashBack and AI noise-canceling microphone support. Builds requiring integrated Wi-Fi, more than two full-length PCIe 3.0 x16 slots or a newer chipset feature set should consider other platforms.

Deciding Spec

The single specification that decides compatibility is the AM4 socket paired with the B450 chipset. This combination dictates which Ryzen and Athlon processors are supported and limits PCIe connectivity to Gen 3.0 on the primary x16 slot and Gen 2.0 on the secondary x16 slot. Verify your CPU generation and lane requirements against this constraint before purchase.

Highlights

  • Supports 3rd, 2nd and 1st Gen Ryzen CPUs
  • 128 GB DDR4 maximum capacity across four slots
  • 5 Gb LAN for faster wired networking
  • AI noise-cancelling microphone input for clearer voice chat
  • BIOS FlashBack enables updates without a CPU installed

Specifications

BrandASUS
ModelTUF GAMING B450M-PRO S
CPU Socket TypeAM4
CPU TypeRyzen / Athlon Series
ChipsetAMD B450
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 2666
Maximum Memory Supported128GB
Channel SupportedDual Channel
ECC SupportedYes
Buffer SupportedUn-buffered
PCI Express 3.0 x161 x PCI Express 3.0 x16
PCI Express 2.0 x161 x PCI Express 2.0 x16
PCI Express x16None
PCI Express x11 x PCI Express x1
Serial ATA (SATA)4 x SATA 6Gb/s
M.22 x M.2
SATA RAID0/1/10
Onboard Video ChipsetSupported only by CPU with integrated graphic
Audio ChipsetRealtek ALC S1200A Surround Sound High Definition Audio CODEC
Audio Channels7.1 Channels
LAN ChipsetRealtek RTL8125B
Max LAN Speed2.5Gbps
Back I/O Ports1 x HDMI / 3 x USB 3.1 Gen 1
HDMI1 x HDMI
USB 3.03 x USB 3.0
Onboard USB2 x USB 3.2 + 4 x USB 2.0
Other Connectors1 x CPU Fan connector(s)1 x CPU OPT Fan connector(s)2 x Chassis Fan connector(s)2 x Aura RGB Strip Headers1 x SPI TPM header1 x Front panel audio connector(s) (AAFP)1 x Clear CMOS jumper(s)1 x System panel connector1 x COM port header1 x Speaker connector
Form FactorMicro ATX
LED LightingRGB
Dimensions (W x L)9.6" x 9.6"
Power Pin24 Pin
Windows 11Supported
FeaturesMulti-GPU Support:Supports AMD 2-Way CrossFireX Technology Software Features:ASUS Exclusive SoftwareArmoury Crate- Aura Creator- Aura Sync- AI Noise-Canceling MicrophoneAI Suite 3- Performance And Power Saving UtilityTurboV EVOEPUDigi+ VRMFan Xpert 2+- EZ updateTUF GAMING CPU-ZAI ChargerASUS Turbo LANDAEMON ToolsDTS Custom for GAMING HeadsetsNorton Anti-virus software (Free Trial for 60 days)WinRARUEFI BIOSASUS EZ DIY- ASUS CrashFree BIOS 3- ASUS EZ Flash 3- ASUS UEFI BIOS EZ ModeASUS Special Features:ASUS TUF PROTECTION- ASUS DIGI+ VRM (Digital power design with DrMOS)- ASUS Enhance
Package ContentsAccessories:User's manualI/O Shield2 x SATA 6Gb/s cable(s)1 x Supporting DVD1 x TUF Gaming Sticker1 x TUF Certification card(s)1 x M.2 SSD screw package(s)1 x M.2 Rubber Package(s)

Questions about this item

What is the maximum DDR4 capacity this board supports?

The board supports up to 128 GB of DDR4 memory across four slots.

How much power does the 8+2 DrMOS power-stage design draw under sustained load?

The 8+2 DrMOS power stages deliver efficient power to the CPU with reduced heat during extended sessions.

Which graphics output ports are available when using a Ryzen processor with integrated Radeon Vega graphics?

The rear panel provides HDMI and DisplayPort outputs for CPUs that include integrated Radeon Vega graphics.

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