Asus PRIME B850M-K-CSM micro-ATX Motherboard ( AMD Socket AM5, Support AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors, 2 x DDR5 Ram Slots, Max 128GB Memory Support )
- Model
- PRIME B850M-K-CSM
- CPU
- AMD Socket AM5 for AMD Ryzen9000 & 8000 & 7000 Series Desktop Processors*
Supports up to AMD 170W CPU
- AMD Socket AM5 for AMD Ryzen9000 & 8000 & 7000 Series Desktop Processors*
- Chipset
- AMD B850 Chipset
- Memory
- 2 x DIMM slots, max. 128GB, DDR5 Supports up to
8200+MT/s(OC) with Ryzen 9000 Series Processors,
9600+MT/s(OC) with Ryzen 8000 Series Processors,
8000+MT/s(OC) with Ryzen 7000 Series Processors,
ECC and Non-ECC Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list Adjustments will be made based on the specifications of mass-produced memory products available on the market.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
- 2 x DIMM slots, max. 128GB, DDR5 Supports up to
- Graphics
- 1 x DisplayPort**
1 x HDMI port***
* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports max. 8K@30Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.
- 1 x DisplayPort**
- Expansion Slots
- AMD 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 (support x4 mode)
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
** Specifications vary by CPU types.
– To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported
- AMD Ryzen 9000 & 7000 Series Desktop Processors*
- Storage
- Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen 9000 & 7000 Series Desktop Processors
2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (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 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)*
AMD B850 Chipset
4 x SATA 6Gb/s ports
* Specifications vary by CPU types.
AMD RAIDXpert2 Technology
Ryzen 9000 Series Processors: RAID 0/1/5/10
Ryzen 8000 Series Processors: RAID 0/1
Ryzen 7000 Series Processors: RAID 0/1/10
- Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
- Ethernet
- 1 x Realtek 2.5Gb Ethernet
ASUS LANGuard
- 1 x Realtek 2.5Gb Ethernet
- USB
- Rear USB (Total 8 ports)
2 x USB 10Gbps ports (2 x Type-A)
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A)
Front USB (Total 7 ports)
1 x USB 5Gbps 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
* USB Type-C power delivery output: max. 5V/3A
- Rear USB (Total 8 ports)
- Audio
- Realtek 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
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
- Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Back Panel I/O Ports
- 2 x USB 10Gbps ports (2 x Type-A)
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks
1 x BIOS FlashBack button
1 x PS/2 Keyboard/Mouse combo port
- 2 x USB 10Gbps ports (2 x Type-A)
- Internal I/O Connectors
- Fan and Cooling Related
1 x 4-pin CPU Fan header
3 x 4-pin Chassis Fan headers
Power Related
1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
Storage Related
2 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
1 x USB 5Gbps 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
Miscellaneous
3 x Addressable RGB Gen 2 headers
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x SPI TPM header (14-1 pin)
1 x 10-1 pin System Panel header
- Fan and Cooling Related
- Special Features
- ASUS 5X PROTECTION III
– DIGI+ VRM
– LANGuard
– Overvoltage protection
– SafeSlot
– Stainless-steel back I/O
ASUS Q-Design
– Q-Dashboard
– Q-DIMM
– Q-LED Core
– Q-Slot
ASUS Thermal Solution
– M.2 heatsink
– VRM heatsink design
ASUS EZ DIY
– BIOS FlashBack button
– BIOS FlashBack LED
– SafeSlot
Aura Sync
– Addressable RGB Gen 2 headers
- ASUS 5X PROTECTION III
- Software Features
- ASUS Exclusive Software
Armoury Crate
– Aura Creator
– Aura Sync
– Fan Xpert 2+
ASUS AI Advisor
ASUS DriverHub
TurboV Core
ASUS CPU-Z
Norton 360 Deluxe (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
- ASUS Exclusive Software
- BIOS
- 256 Mb Flash ROM, UEFI AMI BIOS
- Manageability
- WOL by PME, PXE
- Accessories
- Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O Shield
1 x M.2 rubber package
1 x Screw package for M.2 SSD
Documentation
1 x Quick start guide
1 x ACC Express activation key card
- Cables
- Operating System
- Windows 11, Windows 10 64-bit
- Form Factor
- micro-ATX Form Factor
6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )
- micro-ATX Form Factor
Seagate ST2000VX017 2TB Skyhawk 5400 Hard Drive










There are no reviews yet.