Chipset

AMD B850

CPU

Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors
Socket AM5

Memory

4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 8400 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Ryzen™ 9000 Series Processors max. overclocking frequency:
• 1DPC 1R Max speed up to 8400+ MT/s
• 1DPC 2R Max speed up to 6400+ MT/s
• 2DPC 1R Max speed up to 6400+ MT/s
• 2DPC 2R Max speed up to 4800+ MT/s
Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPOTM
Supports Dual-Channel mode
Supports Non-ECC, Un-buffered memory
Supports CUDIMM, Clock Driver bypass mode only*
* CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility.
• The DIMM slots on this motherboard only have single-sided latche.
• Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.

Onboard Graphics

1x HDMI™
Support HDMITM 2.1 with FRL port, supporting a maximum resolution of 8K 60Hz*
*Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.

Slot

3x PCI-E x16 slot
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
PCI_E1 slot
• Supports PCIe 5.0 x16 (For Ryzen™ 9000/ 7000 Series processors)
• Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors)
• Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processor)
*PCI_E3 slot will run x2 speed when installing devices in the M.2_3 slot

Audio

Realtek® ALC4080 Codec
7.1-Channel USB High-Performance Audio
Supports up to 32-Bit/384 kHz playback on front panel
Supports S/PDIF output

Storage

4x M.2
M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 22110/2280 devices
M.2_2 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x2 , supports 2280/2260 devices
M.2_4 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
4x SATA 6G
M.2_1 slot
• Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors)
• Supports up to PCIe 4.0 x4 (For Ryzen™ 8000 Series processors)
M.2_2 slot
• Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors)
• Supports up to PCIe 4.0 x4 (For Ryzen™ 8700/ 8600 / 8400 Series processors)
• Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors)

RAID

• Supports RAID 0, RAID 1 and RAID 10* for M.2 NVMe storage devices
*RAID 10 for M.2 NVMe storage devices is only supported by AMD Ryzen 9000/7000 series CPU

USB

4x USB 2.0 (Rear)
4x USB 2.0 (Front)
1x USB 5Gbps Type A (Rear)
4x USB 5Gbps Type A (Front)
2x USB 10Gbps Type A (Rear)
3x USB 10Gbps Type C (Rear)
1x USB 20Gbps Type C (Front)

LAN

1x Realtek® 8126 5G LAN

Internal IO

1x Power Connector(ATX_PWR)
2x Power Connector(CPU_PWR)
1x Power Connector(PCIE_PWR 8pin)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
6x System Fan
1x EZ Conn-header (JAF_2)
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
3x Addressable V2 RGB LED connector (JARGB_V2)
1x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
4x USB 5Gbps Type A ports
1x USB 20Gbps Type C ports

WIRELESS LAN & BLUETOOTH

Wi-Fi 7
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be
Supports Bluetooth® 5.4**, MLO, 4KQAM
* 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2.
** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.

LED FEATURE

4x EZ Debug LED
1x EZ Digit Debug LED
1x EZ Memory Detection LED

BACK PANEL PORTS

Clear CMOS Button
USB 10Gbps Type-A
USB 5Gbps Type-A
USB 2.0
5G LAN
Wi-Fi / Bluetooth
Audio Connectors
Flash BIOS Button
HDMI™
USB 10Gbps Type-C
USB 10Gbps Type-A
USB 10Gbps Type-C
Optical S/PDIF Out

OPERATING SYSTEM

Support for Windows® 11 64-bit

FORM Factor

ATX
304.8mmx243.84mm