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ATX motherboard in dark finish with rear I/O shield and multiple M.2 heatsinks

GIGABYTE

GIGABYTE B850 AORUS STEALTH AMD motherboard

SKU CH-YN95-ME2FY MPN B850 AORUS STEALTH

An AMD AM5 ATX board with four M.2 slots, PCIe 5.0 graphics support, Wi-Fi 7 and 5GbE LAN

  • CPU Socket TypeAM5
  • CPU TypeRyzen 9000 Series, Ryzen 8000 Series, Ryzen 7000 Series
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardSupport for DDR5 8200(O.C) / 8000(O.C) / 7950(O.C) / 7900(O.
  • Maximum Memory Supported256GB

Option B850 AORUS STEALTH

Struck-through versions exist but are not stocked here.

  • X3D Turbo Mode lifts gaming frames up to 18%
  • DDR5 overclocking reaches 8200 MT/s on four DIMM slots
  • 14+2+2 phase digital VRM feeds high-end Ryzen CPUs
  • Four M.2 sockets accept PCIe 5.0 and 4.0 x4 drives
  • Realtek 5GbE LAN plus WIFI7 keeps network latency low

AM5 Platform for Ryzen 7000 8000 9000

This ATX motherboard uses the AMD B850 chipset and AM5 socket to support Ryzen 7000 8000 and 9000 series processors. Four DDR5 slots accept up to 256GB of unbuffered non-ECC memory running at speeds up to 8200MT/s through AMD EXPO profiles. A digital twin 14 plus 2 plus 2 phase VRM delivers stable power for high core count CPUs.

Build Integration With Four M.2 And PCIe 5.0

One CPU linked PCIe 5.0 x16 slot handles graphics cards at full bandwidth with Ryzen 9000 and 7000 chips while Ryzen 8000 series runs at PCIe 4.0 x8. Four M.2 connectors support both PCIe 5.0 x4 and PCIe 4.0 x4 drives and the exclusive M.2 EZ-Flex baseplate adds flexible heat dissipation without blocking large coolers. Two SATA 6Gbps ports remain for legacy storage and RAID 0 1 5 10 is available for NVMe arrays.

WIFI7 5GbE LAN And Realtek ALC1220 Audio

Onboard WIFI7 and a Realtek 5GbE controller provide high speed wired and wireless networking without extra cards. The Realtek ALC1220 codec drives 2 4 5.1 or 7.1 channel audio with software configurable jack retasking. DriverBIOS pre installs the Wi-Fi driver so the network is active immediately after first power on. X3D Turbo Mode and the upcoming AORUS AI SNATCH feature apply one click BIOS optimisations for gaming frame rate gains.

Highlights

  • X3D Turbo Mode lifts gaming frames up to 18%
  • DDR5 overclocking reaches 8200 MT/s on four DIMM slots
  • 14+2+2 phase digital VRM feeds high-end Ryzen CPUs
  • Four M.2 sockets accept PCIe 5.0 and 4.0 x4 drives
  • Realtek 5GbE LAN plus WIFI7 keeps network latency low

Specifications

BrandGIGABYTE
SeriesAORUS
ModelB850 AORUS STEALTH
CPU Socket TypeAM5
CPU TypeRyzen 9000 Series, Ryzen 8000 Series, Ryzen 7000 Series
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Memory StandardSupport for DDR5 8200(O.C) / 8000(O.C) / 7950(O.C) / 7900(O.C) / 7800(O.C) / 7600(O.C.) / 7400(O.C.) / 7200(O.C.) / 7000(O.C.) / 6800(O.C.) / 6600(O.C.) / 6400(O.C) / 6200(O.C) / 6000(O.C) / 5800(O.C) / 5600(O.C) / 5200 / 4800 / 4400 MT/s memory modules.
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO / Intel XMP
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
PCI Express 5.0 x161 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
AMD Ryzen 9000/7000 Series Processors support PCIe 5.0 x16 mode
AMD Ryzen 8000 Series-Phoenix 1 Processors support PCIe 4.0 x8 mode
AMD Ryzen 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4 mode
The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot.
Chipset:
1 x PCI Express x16 slot, supporting PCIe 4.0 and running at x4 (PCIEX4)
The PCIEX4 slot shares bandwidth with the M2D_SB connector. The PCIEX4 slot becomes unavailabl
Serial ATA (SATA)2 x SATA 6Gb/s
M.24 x M.2 (Support PCIe 5.0 x4 & PCIe 4.0 x4)
SATA RAIDRAID 0, RAID 1, RAID 5, and RAID 10 support for NVMe SSD storage devices
RAID 5 is only available on AMD Ryzen 9000 Series Processors.
RAID 0 and RAID 1 support for SATA storage devices
Audio ChipsetRealtek ALC1220
Audio Channels2/4/5.1/7.1-channel
You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.
LAN ChipsetRealtek 5GbE
Max LAN Speed5Gbps
Wireless LANRealtek Wi-Fi 7 RTL8922AE
WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands
BluetoothBluetooth 5.4
Back I/O Ports1 x HDMI port (Note)
2 x antenna connectors (2T2R)
1 x USB Type-C header, with USB 3.2 Gen 2 support
2 x USB 3.2 Gen 2 Type-A ports (red)
4 x USB 3.2 Gen 1 ports
4 x USB 2.0/1.1 ports
1 x RJ-45 port
1 x optical S/PDIF Out connector
2 x audio jacks
(Note) Actual support may vary by CPU.
HDMI1 x HDMI
Audio Ports2 Ports
Onboard USB1 x USB Type-C® header, with USB 3.2 Gen 2x2 + 1 x USB 3.2 Gen 1 header + 2 x USB 2.0/1.1 headers
Other Connectors1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x 4-pin ATX 12V power connector
1 x CPU fan header
1 x CPU fan/water cooling pump header
4 x system fan headers
2 x system fan/water cooling pump headers
3 x addressable RGB Gen2 LED strip headers
1 x RGB LED strip header
4 x M.2 Socket 3 connectors
1 x front panel header
1 x front panel audio header
1 x noise detection header
1 x Trusted Platform Module header (For the GC-TPM2.0 SPI V2 module only)
1 x Q-Flash Plus button
1 x power button
1 x reset button
1 x reset jumper
2 x temperature sensor headers
1 x Clear
Form FactorATX
LED LightingRGB
Dimensions (W x L)30.5cm x 24.4cm
BIOS Feature1 x 512 Mbit flash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Windows 11Supported
Shipping weight3.63 kg
Package size338 × 312 × 94 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will this board fit in a standard ATX case without blocking front-panel headers or cable routing?

The STEALTH layout moves all connectors to the rear edge, so front-panel headers, power cables and SATA ports stay clear in any ATX chassis.

Which Ryzen processors can run the PCIe 5.0 x16 slot at full speed?

Ryzen 9000 and 7000 series CPUs enable PCIe 5.0 x16; Ryzen 8000 series CPUs run the slot at PCIe 4.0 x8.

What DDR5 memory speeds are officially supported and how much capacity can I install?

The board supports DDR5 speeds from 5600 up to 8200 MT/s when overclocked via EXPO or XMP, with a maximum capacity of 256 GB across four slots.

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