ASUS Prime B860M-A WiFi-CSM LGA1851 Micro-ATX DDR5 256 GB Motherboard
* PC Pro Guide may earn a small commission when you buy through links on our site. (Affiliate disclosure)
* Prices and availability can change without notice. The price and stock status displayed on Amazon at the time you complete your purchase are the ones that apply.
Description
The ASUS Prime B860M-A WiFi-CSM is a Micro-ATX motherboard for LGA1851. It supports DDR5 memory up to 8600 MT/s (OC).
- ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards.
- Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
- Intel LGA 1851 Socket: Ready for Intel Core Ultra Processors (Series 2)
- Robust Power Solution: 7+1+1+1 80A DrMOS power stages, 8 pin ProCool power connector, alloy chokes and durable capacitors for stable power delivery
- Latest M.2 Support: One onboard PCIe 5.0 M.2 slot equipped with one M.2 heatsink and one PCIe 4.0 M.2 slot
Specifications
| Manufacturer | ASUS |
|---|---|
| Model Number | PRIME B860M-A WIFI-CSM 90MB1JY0-M0AAYC |
| Launch Date | January 2025 |
| CPU Socket | LGA1851 |
| Chipset Model | Intel B860 |
| Board Size / Form Factor | Micro-ATX |
| Supported Memory Type | DDR5 |
| DIMM Slots | 4 |
| Maximum RAM Capacity | 256 GB |
| Valid DDR4 Speeds | DDR5-4800 / DDR5-8600 (OC) |
| ECC Memory Support | No |
| Expansion Slots (PCIe) | 2 × PCIe x16, 1 × PCIe x1 |
| PCIe x16 (Qty) | 2 |
| PCIe x4 (Qty) | 0 |
| PCIe x1 (Qty) | 1 |
| M.2 Slot Count | 2 × M.2 |
| M.2 Device Compatibility | 2242 / 2260 / 2280 - M Key, 2242 / 2260 / 2280 - M Key |
| SATA III Ports | 4 × SATA 6Gbps |
| SATA Express Ports | 0 |
| Wired Networking (LAN) | |
| Onboard Wi-Fi | No |
| Wi-Fi Standard | |
| Rear-Panel USB | USB 3.2 Gen2, USB 3.2 Gen1, USB 2.0 |
| Internal USB 3.2 Gen 2x2 Headers | 0 |
| Internal USB 3.2 Gen 2 Headers | 1 |
| Internal USB 3.2 Gen 1 Headers | 1 |
| Internal USB 2.0 Headers | 1 |
| NVIDIA SLI | No |
| AMD CrossFire | No |
| RAID Capability | Yes |
| Back-Connect Layout | No |
| Manufacturer Part Number (MPN) | PRIME B860M-A WIFI-CSM |
| SKU Code | PRIME B860M-A WIFI-CSM |
| GTIN / EAN | 197105806290 |
Price History (last 12 months)
Plots available price points within the past 12 months.
