The Gigabyte B860M Eagle is built around the LGA 1851 socket and the B860 chipset, housed in a Micro-ATX form factor measuring 244 x 225 mm, which makes it a compact but capable platform for Intel-based builds. It supports overclocking and features dual BIOS for firmware redundancy, though it does not offer an easy CMOS reset button. The board carries a single CPU socket, has no integrated CPU or integrated graphics, and comes without Wi-Fi, Bluetooth, or RGB lighting. Video output is handled via an HDMI 2.1 port, and the board is backed by a three-year warranty.
This board supports DDR5 memory across two slots in a dual-channel configuration, with a maximum capacity of 128GB. The rated memory speed tops out at 6400 MHz, while overclocking headroom extends that figure up to 9066 MHz for users looking to push performance further. ECC memory is not supported, making this configuration suited to standard consumer workloads rather than workstation or server use cases.
The rear I/O panel provides three USB 3.2 Gen 1 Type-A ports as the sole USB connectivity, with no USB 2.0, USB Type-C, USB 4, Thunderbolt, or eSATA ports present. Display output is covered by one HDMI port and one DisplayPort output, while DVI and VGA connections are absent. Networking is handled through a single RJ45 port, and a PS/2 port is included for legacy peripheral support.
Internal connectivity includes two M.2 sockets and four SATA 3 connectors for storage, with no SATA 2, mSATA, or U.2 sockets available. USB expansion headers consist of two USB 3.2 Gen 1 connectors and four USB 2.0 headers, allowing additional ports to be added via the case front panel. The board also features four fan headers for cooling management and includes a TPM connector for hardware-based security support.
The board offers a modest but focused expansion layout, centered on a single PCIe 5.0 x16 slot intended for the primary graphics card, alongside one PCIe x4 slot for additional cards or adapters. There are no PCIe 4.0, 3.0, or 2.0 x16 slots, no PCIe x1 or x8 slots, and no legacy PCI slots, keeping the expansion options straightforward and in line with the compact Micro-ATX footprint.
The onboard audio supports a 7.1-channel configuration and provides three analog audio connectors for connecting speakers, headphones, and microphones. There is no S/PDIF output available for digital audio passthrough to external receivers or DACs.
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 not supported, though the available modes are sufficient for most consumer and light workstation storage arrangements.
