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| Brand | ASUS |
| Model | PRIME B860M-A WIFI-CSM |
| Chipset | Intel B860 |
| CPU Socket | LGA1851 |
| Form Factor | Micro-ATX |
| Supported CPUs | Intel Core Ultra Series 2 Processors |
| RAM Type | DDR5 |
| RAM Capacity | Up to 256 GB |
| RAM Speed | Up to 8666+ MT/s (OC) |
| Memory Slots | 4 x DIMM |
| PCIe Version | PCIe 5.0 / 4.0 |
| PCIe Slots | 1 x PCIe 5.0 x16 1 x PCIe 4.0 x16 (@x4) 1 x PCIe 4.0 x1 |
| M.2 Slots | 2 x M.2 (M.2_1 PCIe 5.0 x4 / M.2_2 PCIe 4.0 x4) |
| SATA Ports | 4 x SATA III 6Gb/s |
| Graphics Output | 2 x DisplayPort 1 x HDMI 1 x USB Type-C (20Gbps, DP Alt Mode) |
| LAN | Realtek 2.5Gb Ethernet with ASUS LANGuard |
| Wireless Connectivity | Wi-Fi 6E 2x2, Bluetooth v5.3 |
| Audio | Realtek 7.1 HD Audio with Audio Shielding, Premium Audio Capacitors, Dedicated PCB Layers |
| USB Ports | • Rear: 1 x USB 20Gbps Type-C • Rear: 1 x USB 10Gbps Type-A • Rear: 2 x USB 5Gbps Type-A • Rear: 4 x USB 2.0 Type-A • Front: 1 x USB 10Gbps Type-C • Front: 1 x USB 5Gbps Header (supports 2 additional USB 5Gbps ports) • Front: 1 x USB 2.0 Header (supports 2 additional USB 2.0 ports) |
| Internal Headers | • 1 x 24-pin ATX Power • 1 x 8-pin +12V CPU Power • 1 x CPU Fan Header • 1 x CPU OPT Fan Header • 1 x AIO Pump Header • 3 x Chassis Fan Headers • 3 x Addressable Gen2 RGB Headers • 1 x Aura RGB Header • 1 x Clear CMOS Header • 1 x Chassis Intrusion Header • 1 x COM Port Header • 1 x Front Panel Audio Header • 1 x S/PDIF Out Header • 1 x SPI TPM Header (14-1pin) • 1 x 10-1 pin Front System Panel Header • 1 x Thunderbolt™ (USB4) Header |
| Cooling Features | VRM and M.2 Heatsinks; Multiple Fan Headers; Fan Xpert 2+ |
| RGB Support | Yes – Aura Sync |
| Warranty | 10 Months Local Warranty |
The ASUS PRIME B860M-A WIFI-CSM DDR5 LGA1851 Micro-ATX Motherboard is engineered for Intel Core Ultra Series 2 processors, delivering powerful performance and advanced connectivity for modern AI-ready PCs and high-demand workloads. Featuring the Intel B860 chipset, it supports DDR5 memory up to 256GB (8666+ MT/s OC) and includes dual M.2 slots with PCIe 5.0/4.0 support, SATA 6Gb/s ports, and Realtek 2.5Gb Ethernet with ASUS LANGuard for reliable networking.
Connectivity options include Wi-Fi 6E (2x2, 2.4/5/6GHz), Bluetooth v5.3, USB 20Gbps Type-C with DP Alt Mode, USB 10Gbps Type-A, and multiple USB 5Gbps/2.0 ports. Expansion is handled through PCIe 5.0 x16 and PCIe 4.0 x16/x1 slots, offering flexibility for modern GPUs and add-on cards.
Cooling and customization are supported via VRM and M.2 heatsinks, multiple fan headers, Aura Sync RGB header, and three Addressable Gen2 headers. Audio is powered by Realtek 7.1 HD Audio with shielding, dedicated PCB layers, and premium capacitors for clear, immersive sound.
