GIGABYTE B860M DS3H WIFI6E M-ATX Motherboard
MPN B860M-DS3H-WIFI6E · Brand GIGABYTE · mATX
The GIGABYTE B860M DS3H WiFi 6E is a Micro-ATX motherboard for Intel LGA1851 (Core Ultra Series 2) with DDR5 support up to 9066 MT/s, PCIe 5.0 M.2, Wi-Fi 6E, 2.5GbE LAN, and a 5+1+2 phase hybrid VRM
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Overview
The GIGABYTE B860M DS3H WiFi 6E is a Micro-ATX motherboard designed for Intel's LGA1851 platform, supporting Intel Core Ultra processors (Series 2) paired with the B860 chipset. It is aimed at builders who want a compact, feature-rich foundation without sacrificing connectivity or storage bandwidth. At the heart of its power delivery is a Hybrid 5+1+2 phase VRM solution, designed to provide stable and consistent power to Intel Core Ultra Series 2 CPUs. The board supports DDR5 memory in dual-channel configuration across four slots, with speeds validated up to 9066 MT/s through XMP profiles, and a maximum capacity of 256 GB. Both ECC Un-buffered and non-ECC Un-buffered DIMM modules are supported (operating in non-ECC mode). For storage, the B860M DS3H WiFi 6E features two M.2 Socket 3 slots — one of which operates at PCIe 5.0 x4 for next-generation NVMe SSDs — and both slots include a Thermal Guard heatsink to manage heat and sustain SSD performance under sustained workloads. Four SATA 6Gb/s ports expand storage options further. Expansion is handled by one CPU-direct PCIe 5.0 x16 slot for the primary graphics card or NVMe SSD, supplemented by three chipset-connected PCIe 4.0 x1 slots. The integrated Wi-Fi 6E (802.11ax) adapter supports the 6 GHz band with speeds reaching up to 2.4 Gbps, and Bluetooth 5.3 is included. A 2.5GbE LAN port rounds out the networking options. The WIFI EZ-Plug design simplifies antenna installation. The rear I/O panel includes one HDMI port, two DisplayPorts, one USB 3.2 Gen 2 Type-A port, two USB 3.2 Gen 1 ports, three USB 2.0/1.1 ports, one PS/2 keyboard/mouse port, and three audio jacks. Internal headers add a USB Type-C (USB 3.2 Gen 1), a USB 3.2 Gen 1 header, and two USB 2.0 headers. Addressable RGB is supported via three ARGB Gen2 headers and one standard RGB header. BIOS features include Q-Flash Plus for USB-based firmware updates without a CPU installed, Auto Scan for automatic BIOS file detection, and AI PerfDrive for customised BIOS preset profiles. A Clear CMOS jumper and reset jumper are included for quick troubleshooting. Key Specifications: - Socket: LGA1851 - Chipset: Intel B860 - CPU Support: Intel Core Ultra (Series 2) - Form Factor: Micro-ATX - Memory: 4 x DDR5 slots, Dual Channel, max 256 GB, up to 9066 MT/s (XMP) - Storage: 2 x M.2 (1 x PCIe 5.0 x4, with Thermal Guard); 4 x SATA 6Gb/s - PCIe: 1 x PCIe 5.0 x16 (CPU); 3 x PCIe 4.0 x1 (Chipset) - Wireless: Wi-Fi 6E 802.11ax (2T2R), Bluetooth 5.3 - LAN: 2.5GbE - Display Output: 1 x HDMI, 2 x DisplayPort - USB (Rear): 1 x USB 3.2 Gen 2 Type-A, 2 x USB 3.2 Gen 1, 3 x USB 2.0/1.1 - Warranty: 3 Years
Datasheet
| Memory Type | DDR5 |
|---|---|
| Warranty | 3 Years |
| Form Factor | mATX |
| Chipset | B860 |
| Socket | LGA1851 |
| Platform | INTEL |
| CPU Type | Core Ultra |
| Max Memory | 256 GB |
| Memory Speed | up to 9066 |
| Graphics Port | 1 x HDMI,2 x DisplayPort |
| Memory Feature | Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode) Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules Support for Extreme Memory Profile (XMP) memory modules (The CPU and memory configuration may affect the supported memory types, data rate (speed), and number of DRAM modules, please refer to "Memory Support List" on GIGABYTE\'s website for more information.) |
| Expansion Slots | CPU: – 1 x PCI Express x16 slot, supporting PCIe 5.0 and running at x16 (PCIEX16) * The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot. Chipset: – 3 x PCI Express x16 slots, supporting PCIe 4.0 and running at x1 (PCIEX1_1/2/3) |
| Channel Supported | Dual Channel |
| Wireless Networking | WiFi 6E,Bluetooth 5.3 |
| Back Panel I/O Ports | 1 x PS/2 keyboard/mouse port 1 x HDMI port (Note) 2 x DisplayPorts (Note) 1 x USB 3.2 Gen 2 Type-A port (red) 2 x USB 3.2 Gen 1 ports 3 x USB 2.0/1.1 ports 2 x antenna connectors (2T2R) 1 x RJ-45 port 3 x audio jacks (Note) Actual support may vary by CPU |
| Internal I/O Connector | 1 x 24-pin ATX main power connector 1 x 8-pin ATX 12V power connector 1 x CPU fan header 1 x CPU fan/water cooling pump header 1 x system fan header 1 x system fan/water cooling pump header 3 x addressable RGB Gen2 LED strip headers 1 x RGB LED strip header 2 x M.2 Socket 3 connectors 4 x SATA 6Gb/s connectors 1 x front panel header 1 x front panel audio header 1 x USB Type-C® header, with USB 3.2 Gen 1 support 1 x USB 3.2 Gen 1 header 2 x USB 2.0/1.1 headers 1 x Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI 2.0/GC-TPM2.0 SPI V2 module only) 1 x Q-Flash Plus button 1 x reset jumper 1 x Clear CMOS jumper |




