The ASUS PRIME B850M-K is a compact micro-ATX motherboard designed for AMD Ryzen™ 9000, 8000, and 7000 Series processors. Powered by the AMD B850 chipset, it features DDR5 memory support, PCIe® 5.0, dual M.2 storage, Realtek® 2.5Gb Ethernet, and AI-ready features, making it an excellent choice for gaming, productivity, and everyday desktop builds.
The ASUS PRIME B850M-K delivers reliable performance and modern connectivity for AMD AM5 systems. Built around the AMD B850 chipset, it supports AMD Ryzen™ 9000, 8000, and 7000 Series desktop processors with DDR5 memory up to 128GB and speeds reaching 8200+ MT/s (OC) for Ryzen™ 9000 processors. It features a PCIe® 5.0 x16 SafeSlot, two M.2 storage slots including one PCIe® 5.0 slot, Realtek® 2.5Gb Ethernet, and comprehensive cooling for stable everyday performance. ASUS AI Advisor, 5X Protection III, BIOS FlashBack™, and EZ DIY features provide an easy building experience, making this motherboard ideal for home users, gamers, and productivity-focused systems.
| Category | Motherboard |
| Manufacturer | ASUS |
| Model | PRIME B850M-K |
| Socket | AM5 |
| Chipset | AMD B850 |
| Memory Support | 2× DDR5, Up to 128GB, Up to 8200+ MT/s (OC) |
| Form Factor | Micro-ATX |
| Storage | 2× M.2 (1× PCIe® 5.0 + 1× PCIe® 4.0), 4× SATA 6Gb/s |
| CPU Support | AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors |
| LAN | Realtek® 2.5Gb Ethernet |
| PCIe Support | PCIe 5.0 |
| Warranty | 1 Year Manufacturer Warranty |
