Description
Asus Prime B850M-K PCIe 5.0 Ai PC Ready AMD DDR5 Gaming MotherBoard
AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors
2 x DIMM slots, max. 128GB, DDR5 Supports up to8200+MT/s(OC) with Ryzen™ 9000 Series Processors,8400+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 architectureSupports AMD Extended Profiles for Overclocking (EXPO™)ASUS Enhanced Memory Profile (AEMP)
1 x Realtek 2.5Gb EthernetASUS LANGuard
Storage Compatibility
Supports 2 x M.2 slots and 4 x SATA 6Gb/s portsAMD Ryzen™ 9000 & 7000 Series Desktop ProcessorsM.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 ProcessorsM.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 Chipset4 x SATA 6Gb/s ports* Specifications vary by CPU types.AMD RAIDXpert2 TechnologyRyzen™ 9000 Series Processors: RAID 0/1/5/10Ryzen™ 8000 Series Processors: RAID 0/1Ryzen™ 7000 Series Processors: RAID 0/1/10
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 DisplayPort1 x HDMI™ port1 x Realtek 2.5Gb Ethernet port3 x Audio jacks1 x BIOS FlashBack™ button1 x PS/2 Keyboard/Mouse combo port
USB Ports Front (Support )
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 ports2 x USB 2.0 headers support 4 additional USB 2.0 ports* USB Type-C® power delivery output: max. 5V/3A
AMD Ryzen™ 9000 & 7000 Series Desktop Processors*1 x PCIe 5.0 x16 slot (supports x16 mode)AMD Ryzen™ 8000 Series Desktop Processors1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**AMD B850 Chipset1 x PCIe 4.0 x16 slot (support x4 mode)
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 playbackAudio 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.
Internal I/O Connectors
Fan and Cooling Related1 x 4-pin CPU Fan header3 x 4-pin Chassis Fan headersPower Related1 x 24-pin Main Power connector1 x 8-pin +12V CPU Power connectorStorage Related2 x M.2 slots (Key M)4 x SATA 6Gb/s portsUSB1 x USB 5Gbps connector (supports USB Type-C® )1 x USB 5Gbps header supports 2 additional USB 5Gbps ports2 x USB 2.0 headers support 4 additional USB 2.0 portsMiscellaneous3 x Addressable RGB Gen 2 headers1 x Clear CMOS header1 x COM Port header1 x Front Panel Audio header (F_AUDIO)1 x S/PDIF Out header1 x SPI TPM header (14-1 pin)1 x 10-1 pin System Panel header
ASUS 5X PROTECTION III- DIGI+ VRM- LANGuard- Overvoltage protection- SafeSlot- Stainless-steel back I/OASUS Q-Design- Q-Dashboard- Q-DIMM- Q-LED Core- Q-SlotASUS Thermal Solution- M.2 heatsink- VRM heatsink designASUS EZ DIY- BIOS FlashBack™ button- BIOS FlashBack™ LED- SafeSlotAura Sync- Addressable RGB Gen 2 headers
Cables2 x SATA 6Gb/s cablesMiscellaneous1 x I/O Shield1 x M.2 rubber package1 x Screw package for M.2 SSDDocumentation1 x Quick start guide
Product Size ( Dimension )
9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )
1 Year ( As per Manufacturer Policy )






