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ATX motherboard in dark grey with yellow accents, large VRM heatsinks, covered M.2 slots, rear I/O shield pre-mounted

ASUS

ASUS TUF GAMING B850-E WIFI AMD motherboard

SKU CH-3755-5R9BC MPN TUF GAMING B850-E WIFI

AM5 motherboard for Ryzen 7000, 8000 and 9000 series with DDR5 up to 8000 MT/s, PCIe 5.0 x16, one PCIe 5.0 M.2 plus two PCIe 4.0 M.2 slots, Wi-Fi 6E, 2.5 Gbps LAN and 20 Gbps front USB-C

  • ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memorySupports up to 8000+MT/s(OC)
  • Robust power delivery with 8+2+1 80A DrMOS stages on an 8-layer PCB
  • PCIe 5.0 x16 slot and PCIe 5.0 M.2 for Ryzen 9000 and 7000 CPUs
  • DDR5 up to 8000 MT/s via AMD EXPO across four slots
  • Wi-Fi 6E and 2.5Gb Ethernet for high-speed networking
  • DIY-friendly Q-Release, Q-Latch and pre-mounted I/O shield simplify assembly

AM5 socket for Ryzen 7000 8000 9000 series

The board uses the AMD B850 chipset and AM5 socket to support Ryzen 7000, 8000 and 9000 series processors. It provides a PCIe 5.0 x16 slot with Ryzen 9000 and 7000 CPUs, while Ryzen 8000 CPUs run the primary slot at PCIe 4.0 x16. Dual-channel DDR5 memory reaches up to 8000+ MT/s via AMD EXPO profiles across four 288-pin slots.

8-layer PCB with 80A DrMOS power stages

An 8-layer PCB carries 8+2+1 80A DrMOS power stages fed by 8+4 pin ProCool connectors, alloy chokes and durable capacitors. Enlarged VRM heatsinks, a flexible M.2 heatsink and PCH heatsink combine with hybrid fan headers and Fan Xpert 4 for thermal control. PCIe Slot Q-Release, M.2 Q-Latch, Q-Antenna, Q-Dashboard, Q-LED and BIOS FlashBack simplify assembly and troubleshooting.

256GB DDR5 capacity and PCIe 5.0 M.2 headroom

Four slots accept up to 256GB of non-ECC un-buffered DDR5, giving ample headroom for heavy multitasking and content creation. One M.2 2280 slot runs at PCIe 5.0 x4 with Ryzen 9000 and 7000 CPUs, while two additional M.2 2280 slots operate at PCIe 4.0 x4. Four SATA 6Gb/s ports support RAID 0, 1, 5 and 10 for bulk storage arrays.

How it compares

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

Price $189.99
Cheaper than about 55% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameTUF GAMING B850-E WIFI
Part number90MB1L20-MVAAY0
Processor
ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
CPU socketAM5
ChipsetAMD B850
Memory
Memory slot count4 × 288pin (DDR5)
Supported memorySupports up to 8000+MT/s(OC)
Max supported RAM256 GB
Memory channelsDual Channel
Memory profilesAMD EXPO
ECC supportNon-ECC
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
AMD Ryzen 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4/x2 mode)
AMD B850 Chipset
M.2_3 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 mode)
SATA and RAID support0/1/5/10
Audio & video
Sound channelsRealtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
- Audio cover
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 ax
Bluetooth support5.3
Ports & slots
PCIe x1 slots1 x PCIe 4.0 x1 slot
Onboard USB headers1 x USB 20 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
1 × 8-pin +12 V CPU Power connector
1 × 4-pin +12 V CPU Power connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Shipping weight1.79 kg
Package size356 × 274 × 71 mm
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Questions about this item

Will the 80A DrMOS power stages or the alloy chokes need replacement after long-term use?

The 8+2+1 80A DrMOS power stages and alloy chokes are soldered to the 8-layer PCB and are not user-replaceable components.

Does the single PCIe 5.0 x16 slot become a bottleneck when a Ryzen 9000 series CPU runs at full load?

With a Ryzen 9000 or 7000 series processor the top slot operates at PCIe 5.0 x16, providing the full link width for current graphics cards.

How loud do the VRM and chipset fans get when the board runs all day under heavy load?

Fan Xpert 4 controls the hybrid fan headers connected to the enlarged VRM heatsink and PCH heatsink, adjusting speed to thermal load.

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