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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

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardSupports up to 8000+MT/s(OC)
  • Maximum Memory Supported256GB
  • 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.

Highlights

  • 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

Specifications

BrandASUS
ModelTUF GAMING B850-E WIFI
Part Number90MB1L20-MVAAY0
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Memory StandardSupports up to 8000+MT/s(OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
PCI Express 5.0 x16AMD Ryzen 9000 & 7000 Series Desktop Processors*
1 x PCIe 5.0 x16 slot (supports x16 mode)
AMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**
AMD B850 Chipset
1 x PCIe 4.0 x16 slot (supports x1 mode)
PCI Express x11 x PCIe 4.0 x1 slot
Serial ATA (SATA)4 x SATA 6Gb/s
M.2AMD 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 RAID0/1/5/10
Audio 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.
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 ax
BluetoothBluetooth 5.3
Back I/O Ports2 x USB 10Gbps ports (1 x Type-A + 1 x USB Type-C)
3 x USB 5Gbps ports (3 x Type-A)
3 x USB 2.0 ports (3 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Wi-Fi module
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks
1 x BIOS FlashBack button
Onboard USB1 x USB 20Gbps connector (supports USB Type-C)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
Miscellaneous
3 x Addressable RGB Gen 2 headers
1 x Clear CMOS header
1 x Chassis Intrusion header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x 10-1 pin Front Panel System header
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
1 x 4-pin +12V CPU Power connector
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 4
- Power Saving
ASUS AI Advisor
ASUS DriverHub
ASUS GlideX
TurboV Core
TUF GAMING CPU-Z
DTS Audio Processing
Adobe Creative Cloud (Free Trial)
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
Windows 11Supported
FeaturesASUS TUF PROTECTION
- DIGI+ VRM (- Digital power design with DrMOS)
- ESD Guards
- TUF LANGuard
- Overvoltage protection
- SafeSlot
- Stainless-steel back I/O
ASUS Q-Design
- M.2 Q-Latch
- PCIe Slot Q-Release
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- Flexible M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- ProCool
- Pre-mounted I/O shield
- SafeDIMM
Aura Sync
- Addressable RGB Gen 2 headers
Package ContentsCables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x TUF Gaming sticker
1 x M.2 rubber package
2 x Screw packages for M.2 SSD
Documentation
1 x Quick start guide
Shipping weight1.79 kg
Package size356 × 274 × 71 mm

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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