ASUS PRIME B850M-K

AMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors*
Supports up to AMD 170W CPU

AMD B850 Chipset

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)

1 x DisplayPort
1 x HDMI™ port

N.A

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)

Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
AMD 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 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

t :,4 x SATA 6Gb/s port(s),gray

1 x Realtek 2.5Gb Ethernet
ASUS LANGuard

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

Rear USB
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
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

ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage protection
- SafeSlot
- Stainless-steel back I/O
ASUS Q-Design
- Q-Slot
- Q-Dashboard
- Q-DIMM
- Q-LED
ASUS Thermal Solution
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- SafeSlot
Aura Sync
- Addressable Gen2 headers

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

N.A

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

Windows 11, Windows 10 64-bit

micro-ATX Form Factor
9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )