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A dark rectangular mATX motherboard with silver LGA 1851 socket, two black DDR5 slots, two M.2 heatsinks

GIGABYTE

GIGABYTE B860M H Intel motherboard

SKU CH-K256-Q1N5N

mATX board for Intel Core Ultra 200 Series CPUs on LGA 1851 with two DDR5 slots up to 128 GB, two PCIe 4.0 M.2 slots, PCIe 5.0 graphics slot and 2.5 GbE LAN

  • Supports Intel Core Ultra 200 Series processors for modern performance
  • 4+1+2 phase power design delivers stable CPU power delivery
  • Two DDR5 DIMM slots support up to 128 GB memory capacity
  • Two PCIe 4.0 x4 M.2 slots provide high-speed storage options
  • Quick-release graphics card slot enables tool-less GPU removal

Socket and chipset

The GIGABYTE B860M H is an mATX motherboard built around the Intel B860 chipset and the LGA 1851 socket. It supports Intel Core Ultra 200 Series processors and provides a compact foundation for systems that need modern connectivity in a smaller chassis.

Memory and storage upgrade path

Two DDR5 DIMM slots accept modules up to 64 GB each for a total of 128 GB, with supported speeds ranging from 5600 MT/s up to 8800 MT/s when overclocked. A pair of PCIe 4.0 x4 M.2 slots gives room for fast primary and secondary drives without occupying a PCIe expansion slot.

Target builds and limitations

This board suits builders who want a streamlined Intel Core Ultra platform with dual-channel DDR5 and twin M.2 slots in an mATX layout. It is less suited for buyers who need four memory slots, more than two M.2 sockets, or a full-size ATX form factor for additional expansion cards.

Highlights

  • Supports Intel Core Ultra 200 Series processors for modern performance
  • 4+1+2 phase power design delivers stable CPU power delivery
  • Two DDR5 DIMM slots support up to 128 GB memory capacity
  • Two PCIe 4.0 x4 M.2 slots provide high-speed storage options
  • Quick-release graphics card slot enables tool-less GPU removal

Specifications

No published specifications for this item yet.

Questions about this item

What socket and form factor does the B860M H use?

The board uses an LGA 1851 socket and an mATX form factor, so it fits any mATX or ATX case with standard Intel mounting holes.

How do I remove a graphics card from the PCIe 5.0 slot?

Press the quick-release latch at the end of the slot to unlock the card; no tools are needed, but the latch must be fully depressed before pulling the card.

How many M.2 drives can I add later and what speeds do they support?

Two M.2 slots are available, each running at PCIe 4.0 x4 for high-speed storage expansion.

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