The Gigabyte B860M Gaming X is built around the LGA 1851 socket with B860 chipset compatibility, and its Micro-ATX form factor gives it a square 244 x 244 mm footprint suited for compact builds. The board ships with a single CPU socket, no integrated CPU or graphics, and lacks both Wi-Fi and Bluetooth, so wireless connectivity depends entirely on add-in solutions. On the reliability side, it includes dual BIOS and supports easy overclocking, though a dedicated clear CMOS button is not present. RGB lighting is built in, the HDMI output runs at version 2.1, and the board is covered by a three-year warranty.
The board supports DDR5 memory across four slots in a dual-channel configuration, with a maximum capacity of 256 GB. Standard RAM speeds top out at 6400 MHz, while overclocking profiles can push that figure up to 9200 MHz for users looking to extract additional memory bandwidth. ECC memory is not supported, making this a consumer-oriented rather than workstation-grade memory subsystem.
The rear I/O panel offers a broad range of USB connectivity, headlined by one Thunderbolt 4 port and one USB 4 40Gbps port, both presented via Type-C. Additional USB options include three USB 3.2 Gen 1 Type-A ports and five USB 2.0 ports; there are no USB 3.2 Gen 2, Gen 2x2, or USB 4 20Gbps ports. Video output is covered by an HDMI output and one DisplayPort, while legacy connectors such as VGA, DVI, and PS/2 are absent. Wired networking is handled by a single RJ45 port, and eSATA is not included.
Internal connectivity is well-rounded, with two M.2 sockets and four SATA 3 connectors handling storage, while SATA 2, U.2, and mSATA are not present. USB expansion headers allow for two USB 3.2 Gen 1 ports, two additional USB 3.0 ports, one USB-C 3.2 Gen 2 port, and four USB 2.0 ports through case or accessory connections. Thermal management is supported by four fan headers, and a TPM connector is included for security module installations.
The board provides two expansion slots in total: one PCIe 5.0 x16 slot for the primary graphics card or high-bandwidth add-in card, and one PCIe x4 slot for additional expansion needs. There are no PCIe 4.0, 3.0, or 2.0 x16 slots, and PCIe x1, x8, and legacy PCI slots are absent entirely, keeping the layout lean in line with the Micro-ATX form factor.
The onboard audio solution supports 7.1-channel surround sound and provides three analog connectors on the rear panel for speaker and headphone connections. An S/PDIF optical output is not included, so digital audio passthrough to external receivers is not available through that interface.
The board supports a solid range of RAID configurations, including RAID 0, 1, 5, and 10, covering common use cases from performance striping to mirrored redundancy and combined setups. RAID 0+1 is the one configuration not supported.
