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Green micro ATX motherboard with black heatsinks and silver sockets

ASUS

ASUS TUF GAMING B550M-E WIFI AMD motherboard

SKU CH-2KGH-QHFSA

Micro ATX AM4 board with dual M.2 slots, four SATA 6Gb/s ports and 128 GB DDR4 capacity

  • ProcessorRyzen Series
  • ChipsetAMD B550
  • Form factorMicro ATX
  • CPU socketAM4
  • Memory slot count4 × 288pin (DDR4)
  • Supported memory4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(O
  • Socket AM4 fits Ryzen 3, 5, 7 CPUs
  • B550 chipset enables PCIe 4.0 x16 slot
  • Micro ATX form factor suits compact cases
  • Four DDR4 slots support up to 128GB memory
  • 1 channel audio with HDMI 2.1 output

Socket AM4 Micro ATX board for Ryzen builds

This ASUS TUF GAMING B550M-E WIFI motherboard fits the Micro ATX form factor and uses the AMD B550 chipset with Socket AM4. It targets builders who want a compact foundation for AMD Ryzen 3, 5 or 7 processors. Four DDR4 slots support up to 128 GB of memory in dual-channel mode.

PCIe 4.0 x16 slot with Ryzen 5000 and 3000 CPUs

The top expansion slot runs at PCIe 4.0 x16 when a Ryzen 5000 Series or Ryzen 3000 Series desktop processor is installed. With Ryzen 5000 G-Series or 4000 G-Series chips the same slot operates at PCIe 3.0 x16. Two additional PCIe 3.0 x1 slots come from the chipset.

Two M.2 slots plus four SATA ports and onboard Wi-Fi

Internal I/O includes two M.2 slots for PCIe 3.0 or SATA drives and four SATA 6Gb/s ports for 2.5-inch SSDs or HDDs. Rear I/O provides HDMI 2.1, USB 3.2 Gen 1 and USB 2.0 connections, while a TPM header and RGB LED header are available for platform security and lighting control.

How it compares

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

Price $110.99
Cheaper than about 73% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameTUF GAMING B550M-E WIFI
Processor
ProcessorRyzen Series
CPU socketAM4
ChipsetAMD B550
Memory
Memory slot count4 × 288pin (DDR4)
Supported memory4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 MHz, Un-buffered Memory*
* ECC memory (ECC mode) support varies by CPU.
Max supported RAM128 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
Ports & slots
PCIe 4.0 x16 slotsAMD Ryzen 5000 Series/ 3000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
PCIe 3.0 x16 slotsAMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors
1 x PCIe 3.0 x16 slot (supports x16 mode)
PCIe x1 slotsAMD B550 Chipset
2 x PCIe 3.0 x1 slots
Size & build
Form factorMicro ATX

Questions about this item

What does the 128 GB maximum memory mean for a build using this board?

You can populate all four DDR4 slots up to 128 GB total, running in dual-channel mode with supported Ryzen processors.

How does the PCIe 4.0 x16 slot operate with different Ryzen CPUs?

With Ryzen 5000 or 3000 series desktop processors the slot runs at PCIe 4.0 x16; with Ryzen 5000 G-Series or 4000 G-Series it runs at PCIe 3.0 x16.

What case and power connectors are required to fit this Micro ATX board?

A Micro ATX compatible case, 24-pin ATX and 8-pin EPS power connectors, plus standard front-panel headers for USB 2.0, USB 3.2 Gen 1, audio and fan headers.

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