ASUS PRIME B860M-A WIFI mATX Motherboard - LGA1851, DDR5
ASUS
ASUS PRIME B860M-A WIFI mATX Motherboard - LGA1851, DDR5
The ASUS PRIME B860M-A WIFI is a micro-ATX motherboard for Intel Core Ultra Processors (Series 2) builders who need robust power delivery, integrated WiFi 6E, and compact form factor in one board. It combines a strong VRM, comprehensive cooling headers, and modern connectivity to support high-performance desktop builds.
Why this product
WiFi 6E and 2.5Gb Ethernet
Built-in WiFi 6E (802.11ax) covers 2.4/5/6GHz bands, and a dedicated 2.5Gb Realtek Ethernet port with LANGuard protection handles wired traffic. Bluetooth 5.3 rounds out wireless support.
10-phase power delivery for CPU and chipset
Seven 80A VRM stages for the CPU plus three additional 80A stages ensure stable power to high-core-count processors. Multi-layer PCB and enlarged heatsinks dissipate heat quickly under load.
PCIe 5.0 and dual M.2 support
One PCIe 5.0 x16 slot (for GPU) connects the fastest add-in cards, while M.2_1 runs at PCIe 5.0 x4 for ultra-fast NVMe storage. M.2_2 runs at PCIe 4.0 x4.
Four RAM slots with DDR5 support
Quad-channel architecture supports up to 256 GB of DDR5 memory, with XMP and ASUS Enhanced Memory Profile III for effortless overclocking configuration.
Eight USB ports including 20Gbps Type-C
One USB 20Gbps Type-C (with DisplayPort Alt mode), one USB 10Gbps Type-A, two USB 5Gbps, and four USB 2.0 ports cover legacy and high-speed devices.
- ChipsetIntel B860
- SocketLGA1851
- Form FactorMicro-ATX (9.6 × 9.6 inches)
- Memory Slots4 × DDR5 DIMM (up to 256 GB)
- WiFiWiFi 6E (802.11ax), 2×2
- Ethernet1 × 2.5 Gb Realtek with LANGuard
- M.2 Slots2 (M.2_1: PCIe 5.0 x4, M.2_2: PCIe 4.0 x4)
- SKUASU-2749
- EAN4711387806289
- Supports Intel Core Ultra Processors (Series 2) in LGA1851 socket, including Turbo Boost Technology 2.0 and Max Technology 3.0.
- Accepts DDR5 memory only; not compatible with DDR4 or older memory types.
- Fits micro-ATX cases; measures 9.6 x 9.6 inches and includes a pre-mounted I/O shield.
- Supports M.2 NVMe drives in 2242, 2260, and 2280 form factors on both M.2_1 and M.2_2 slots.
- The second PCIe x16 slot runs at x4 mode when populated; it is limited to PCIe 4.0 speed.
Best for
- Mid-range and high-performance builds using Core Ultra Series 2 processors
- Builders who want WiFi 6E and 2.5Gb Ethernet without separate add-in cards
- Users needing PCIe 5.0 storage speed on a compact, affordable platform
- System integrators who value comprehensive cooling headers and RGB synchronization
Trade-offs
- Builders limited to mini-ITX or smaller form factors; this board requires a micro-ATX case.
- Users with older DDR4 memory or previous-generation Intel processors; this board supports only DDR5 and LGA1851.
- Those needing more than one full-speed PCIe x16 slot; the second slot runs at x4 mode.
- Multi-GPU setups or NVMe RAID beyond single M.2 performance; only two M.2 slots are available.
Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, the PRIME B860M-A WIFI motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features.
Performance — Robust power design
Stable power is crucial for maximizing the performance of Intel® Core™ Ultra Processors (Series 2). The PRIME B860M-A WIFI is designed to meet the needs of high-core-count CPUs. It features 7(80A) + 1(80A) + 1(80A) + 1(80A) power stages that integrate high-side and low-side MOSFETs and drivers into packages rated for up to 80 amperes each. The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom.
Cooling — Cooler by design
The PRIME B860M-A WIFI motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads.
Flexibility — Empowering connections
The PRIME B860M-A WIFI motherboard offers a versatile range of connectivity, including support for WiFi 6E, the latest version of PCI Express and an arsenal of USB ports which includes Type-C connections.
Customization — Personalization
The PRIME B860M-A WIFI enhances the user experience across the board, from simplifying BIOS setting adjustments to offering complete RGB lighting control for enthusiast systems, ensuring seamless synchronization with compatible hardware.
General
| Brand | ASUS |
|---|---|
| Chipset | Intel B860 |
| CPU Socket | LGA1851 for Intel Core Ultra Processors (Series 2) |
Networking
| Ethernet | 1 × Realtek 2.5 Gb with ASUS LANGuard protection |
|---|---|
| WiFi | 2×2 WiFi 6E (802.11ax), 2.4/5/6 GHz bands |
| Bluetooth | Bluetooth 5.3 |
Performance
| Power Delivery | 7(80A) + 1(80A) + 1(80A) + 1(80A) power stages with enlarged VRM heatsinks |
|---|---|
| Memory Support | 4 × DIMM, DDR5 up to 8666+ MT/s (OC), XMP and ASUS Enhanced Memory Profile III |
| Storage Interface M.2_1 | PCIe 5.0 x4 (2242/2260/2280 form factor) |
| Storage Interface M.2_2 | PCIe 4.0 x4 (2242/2260/2280 form factor) |
| SATA Ports | 4 × SATA 6 Gb/s |
| PCIe Expansion Slots | 1 × PCIe 5.0 x16 (SafeSlot), 1 × PCIe 4.0 x16 (x4 mode), 1 × PCIe 4.0 x1 |
Ports & Power
| Rear USB Ports | 1 × USB 20Gbps Type-C (DP Alt mode), 1 × USB 10Gbps Type-A, 2 × USB 5Gbps Type-A, 4 × USB 2.0 Type-A |
|---|---|
| Video Output | 2 × DisplayPort (4K@60Hz, DP 1.4), 1 × HDMI (4K@60Hz, HDMI 2.1) |
| Audio Codec | Realtek 7.1 Surround Sound High Definition, 24-bit/192 kHz playback |
| Fan Headers | 1 × CPU Fan, 1 × CPU OPT, 1 × AIO Pump, 3 × Chassis Fan (all 4-pin) |
| Power Connectors | 1 × 24-pin ATX, 1 × 8-pin CPU +12V |
Physical
| Form Factor | Micro-ATX |
|---|---|
| Dimensions | 9.6 × 9.6 inches (24.4 × 24.4 cm) |
| PCB Layers | Six-layer PCB design |
| Protection | ASUS 5X PROTECTION III (DIGI+ VRM, ESD Guards, LANGuard, Overvoltage protection, SafeSlot, Stainless-steel back I/O) |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.