The Biostar B860MT-E Pro uses the LGA 1851 socket paired with the B860 chipset and adopts a Micro-ATX form factor at 244 × 244 mm, making it suitable for compact builds. It supports a single CPU and outputs video via HDMI 2.1, though it carries no integrated graphics or integrated CPU of its own. Overclocking is supported for added flexibility, and a dual BIOS setup provides a reliable fallback during firmware updates, while a manual CMOS reset option is not present. The board does not include Wi-Fi, Bluetooth, or RGB lighting, keeping the feature set straightforward, and it is backed by a 3-year warranty.
The board features four DDR5 memory slots arranged across two channels, supporting a maximum capacity of 256 GB. Overclocked RAM speeds can reach up to 8000 MHz, offering meaningful headroom for users who want to push memory performance beyond standard frequencies. ECC memory is not supported, so the board is oriented toward consumer rather than workstation or server use cases.
The rear panel offers a practical mix of connectivity, led by four USB 3.2 Gen 2 Type-A ports alongside two USB 2.0 ports and one USB Type-C port, while higher-speed options such as USB 3.2 Gen 2x2, USB 4, Thunderbolt 3, and Thunderbolt 4 are absent. Display output is handled by one HDMI port and two DisplayPort outputs, with no DVI or VGA connector present. Networking is covered by a single RJ45 port, and a PS/2 port is included for legacy peripheral support. There are no eSATA ports on this board.
Internal connectivity is well-covered, with three M.2 sockets and four SATA 3 connectors available for storage, while SATA 2, mSATA, and U.2 options are not present. USB expansion headers include two USB 3.2 Gen 1 ports, two USB 3.0 ports, one USB-C 3.2 Gen 2 port, and four USB 2.0 ports, providing solid flexibility for front-panel and add-in connections. The board includes three fan headers for cooling management and a TPM connector for security module support.
The board provides two full-length expansion slots: one PCIe 5.0 x16 slot and one PCIe 4.0 x16 slot, covering the primary needs for discrete graphics cards and other high-bandwidth add-in cards. There are no PCIe 3.0, PCIe 2.0, PCIe x8, PCIe x4, PCIe x1, or legacy PCI slots, keeping the expansion layout lean and focused within the constraints of the Micro-ATX form factor.
The board supports 7.1-channel audio output through three analog audio connectors on the rear panel. There is no S/PDIF Out port, so digital optical or coaxial audio output is not available.
The board supports four RAID configurations: RAID 0, RAID 1, RAID 5, and RAID 10 (1+0), covering a range of performance and redundancy setups. RAID 0+1 is not supported.
