Description
Asus Prime B850M-K-CSM DDR5 AMD Motherboard
B850M-K-CSM
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850M-K-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
| ASUS PRIME B850M-K-CSM Specifications | |
|---|---|
| CPU Support | AMD Socket AM5 for Ryzen™ 9000, 8000 & 7000 Series Desktop Processors |
| Chipset | AMD B850 |
| Memory | 2 x DIMM slots, max. 128GB DDR5 Speeds: 8000+~8400+ MT/s (OC, depending on CPU) Dual channel, ECC and Non-ECC Un-buffered DIMM Supports AMD EXPO & ASUS AEMP |
| Graphics | 1 x DisplayPort (max 8K@30Hz) 1 x HDMI 2.1 port (max 4K@60Hz) |
| Expansion Slots | PCIe slots depend on CPU type: Ryzen 9000/7000: 1 x PCIe 5.0 x16 (x16 mode) Ryzen 8000: 1 x PCIe 4.0 x16 (x8/x4 mode) B850 Chipset: 1 x PCIe 4.0 x16 (x4 mode) |
| Storage | 2 x M.2 slots, 4 x SATA 6Gb/s ports M.2 support depends on CPU: - 9000/7000: M.2_1 PCIe 5.0 x4, M.2_2 PCIe 4.0 x4 - 8000: M.2_1 PCIe 4.0 x4, M.2_2 PCIe 4.0 x4/x2 AMD RAIDXpert2: RAID 0/1/5/10 (varies by CPU) |
| Ethernet | 1 x Realtek 2.5Gb Ethernet, ASUS LANGuard |
| USB Ports | Rear (8): 2 x USB 10Gbps (Type-A), 2 x USB 5Gbps (Type-A), 4 x USB 2.0 (Type-A) Front (7): 1 x USB 5Gbps Type-C, 1 x USB 5Gbps header (2 ports), 2 x USB 2.0 headers (4 ports) |
| Audio | Realtek 7.1 Surround Sound HD Audio CODEC Supports up to 24-Bit/192 kHz playback, Jack-detection, Multi-streaming, Front Panel Jack-retasking Audio Shielding, Premium capacitors, Dedicated PCB layers |
| Back Panel I/O | 2 x USB 10Gbps, 2 x USB 5Gbps, 4 x USB 2.0, 1 x DisplayPort, 1 x HDMI, 1 x Ethernet, 3 x Audio jacks, 1 x BIOS FlashBack button, 1 x PS/2 combo port |
| Internal I/O Connectors | 1 x 4-pin CPU Fan, 3 x 4-pin Chassis Fan 1 x 24-pin Main Power, 1 x 8-pin +12V CPU Power 2 x M.2 slots, 4 x SATA 6Gb/s USB connectors as above 3 x Addressable RGB Gen 2, 1 x Clear CMOS, 1 x COM, 1 x F_AUDIO, 1 x S/PDIF Out, 1 x SPI TPM, 1 x 10-1 pin System Panel |
| 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 & VRM heatsink) ASUS EZ DIY (BIOS FlashBack button & LED) Aura Sync (Addressable RGB Gen 2 headers) |
| Software Features | Armoury Crate, Aura Creator, Aura Sync, Fan Xpert 2+, ASUS AI Advisor, ASUS DriverHub, TurboV Core, ASUS CPU-Z, Norton 360 Deluxe (60 days), WinRAR (40 days) |
| BIOS | 256 Mb Flash ROM, UEFI AMI BIOS ASUS CrashFree BIOS 3, EZ Flash 3, EZ Mode, MyHotkey |
| Accessories | 2 x SATA cables, 1 x I/O shield, 1 x M.2 rubber package, 1 x M.2 screw package, 1 x Quick start guide, 1 x ACC Express key card |
| Operating System | Windows 11, Windows 10 64-bit |
| Form Factor | micro-ATX (24.4 cm x 22.1 cm / 9.6" x 8.7") |
