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ASRock B860M-H2 specifications and in-depth review

ASRock B860M-H2

Manufacturer: ASRock

The ASRock B860M-H2 is a Micro-ATX motherboard designed around Intel's LGA 1851 platform and the B860 chipset, measuring 244 mm × 211 mm. It supports DDR5 memory across two slots, reaching speeds of up to 6400 MHz in standard operation and up to 8333 MHz with overclocking enabled, with a maximum capacity of 128 GB across two channels. The board carries a three-year warranty and ships with dual BIOS for added reliability during firmware updates.

Connectivity is handled through a rear I/O panel featuring three USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, one USB 3.2 Gen 2x2 Type-C port, a single RJ45 Ethernet jack, three audio connectors for 7.1-channel output, and an HDMI 2.1 video output. Internally, the board provides four SATA 3 connectors with full RAID 0, 1, 5, and 10 support, two M.2 sockets, four fan headers, and headers for additional USB 2.0 and USB 3.2 Gen 1 ports via expansion. The single PCIe 4.0 x16 slot is complemented by two PCIe x1 slots, and a TPM connector is included on-board. Wireless connectivity is not built in.

Pros
  • Supports DDR5 memory with overclocked speeds up to 8333 MHz, offering significant headroom for memory tuning
  • Dual BIOS provides a fallback in case of a failed firmware update, adding a layer of reliability
  • Includes a USB 3.2 Gen 2x2 Type-C port on the rear I/O, delivering up to 20 Gbps for fast external storage or device connections
  • Full RAID support across modes 0, 1, 5, and 10 gives meaningful flexibility for storage redundancy and performance configurations
  • Two M.2 sockets alongside four SATA 3 connectors allow for a versatile mix of NVMe and traditional drive installations
  • Three-year warranty provides solid long-term coverage for a board in this category
Cons
  • Only two memory slots limit future upgrade paths, as there is no room to add modules beyond the initial configuration
  • No Wi-Fi or Bluetooth built in, requiring additional adapters for wireless connectivity
  • Lacks a dedicated CMOS reset button, making BIOS recovery less straightforward
  • No USB 3.2 Gen 2 Type-A ports on the rear I/O, with the only high-speed USB option being the single Gen 2x2 Type-C port
  • No DisplayPort output, leaving HDMI as the sole video output option on the board
Who is this for?

This board is a solid fit for users building a compact desktop system on the Intel LGA 1851 platform who want to keep the footprint small without sacrificing storage flexibility. The two M.2 sockets and four SATA 3 connectors make it well-suited for home or small office builds that need a mix of fast NVMe drives and traditional storage, while full RAID 0, 1, 5, and 10 support adds value for anyone who wants basic redundancy or striped performance across multiple drives. The support for overclocked DDR5 memory up to 8333 MHz also makes it a reasonable choice for users who want to push memory performance within a Micro-ATX chassis, and the dual BIOS is a practical safety net for those who tinker with firmware settings.

Who is this NOT for?

Users who rely on wireless connectivity will find this board lacking, as there is no built-in Wi-Fi or Bluetooth, which makes it a poor fit for environments where running an Ethernet cable is impractical. The board is also ill-suited for workstation or server use cases that depend on ECC memory for data integrity, as this feature is not supported. Additionally, with only two memory slots, the board offers no room to expand RAM incrementally, which makes it a weak choice for users who anticipate needing to scale memory capacity over time or who plan to run memory-intensive workloads across multiple modules.

General info:

CPU socket LGA 1851
chipset B860
form factor Micro-ATX
supports Wi-Fi ✕
Has Bluetooth ✕
HDMI version HDMI 2.1
Easy to overclock ✓
has RGB lighting ✕
Easy to reset BIOS ✕
Has dual BIOS ✓
CPU sockets 1
Has integrated graphics ✕
warranty period 3 years
height 211 mm
width 244 mm
Has integrated CPU ✕

The ASRock B860M-H2 is built around the LGA 1851 socket and is compatible with the B860 chipset, housed in a Micro-ATX form factor measuring 244 mm × 211 mm. It supports overclocking and includes a dual BIOS for added firmware resilience, though it does not offer an easy CMOS reset button. The board outputs video through an HDMI 2.1 port but lacks integrated or onboard graphics, meaning a discrete GPU is required for display output. Wi-Fi and Bluetooth are not built in, and there is no RGB lighting on the board. A single CPU socket is present, with no integrated CPU included. The board carries a three-year warranty.

Memory:

maximum memory amount 128GB
RAM speed (max) 6400 MHz
overclocked RAM speed 8333 MHz
memory slots 2
DDR memory version 5
memory channels 2
Supports ECC memory ✕

The board uses DDR5 memory across two slots arranged in a dual-channel configuration, supporting up to 128 GB in total capacity. Standard RAM speeds reach up to 6400 MHz, while overclocking pushes that ceiling to 8333 MHz. ECC memory is not supported.

Ports:

USB 3.2 Gen 2 ports (USB-A) 0
USB 3.2 Gen 1 ports (USB-A) 3
USB 3.2 Gen 2 ports (USB-C) 0
USB 3.2 Gen 1 ports (USB-C) 0
USB 2.0 ports 2
USB 3.2 Gen 2x2 ports 1
USB 4 40Gbps ports 0
USB 4 20Gbps ports 0
Thunderbolt 4 ports 0
Thunderbolt 3 ports 0
has an HDMI output ✓
DisplayPort outputs 0
RJ45 ports 1
Has USB Type-C ✓
eSATA ports 0
DVI outputs 0
has a VGA connector ✕
PS/2 ports 0

The rear I/O panel provides three USB 3.2 Gen 1 Type-A ports and two USB 2.0 ports for standard peripherals, alongside a single USB 3.2 Gen 2x2 Type-C port for higher-bandwidth connections. There are no USB 3.2 Gen 2 Type-A or Type-C ports, and USB 4, Thunderbolt 3, and Thunderbolt 4 are absent. Video output is handled by a single HDMI port, with no DisplayPort, DVI, or VGA connectors available. Network connectivity is provided through one RJ45 port, and there are no eSATA or PS/2 ports on the board.

Connectors:

USB 3.2 Gen 1 ports (through expansion) 2
USB 2.0 ports (through expansion) 4
SATA 3 connectors 4
fan headers 4
USB 3.0 ports (through expansion) 2
M.2 sockets 2
Has TPM connector ✓
U.2 sockets 0
Has mSATA connector ✕
SATA 2 connectors 0

Internal connectivity includes two M.2 sockets and four SATA 3 connectors for storage, with no SATA 2, mSATA, or U.2 sockets present. USB expansion headers allow for two additional USB 3.2 Gen 1 ports, two USB 3.0 ports, and four USB 2.0 ports through front-panel or add-in connections. The board also features four fan headers for cooling management and includes a TPM connector for hardware-based security support.

Expansion slots:

PCIe 4.0 x16 slots 1
PCIe 5.0 x16 slots 0
PCIe 3.0 x16 slots 0
PCIe x1 slots 2
PCI slots 0
PCIe 2.0 x16 slots 0
PCIe x4 slots 0
PCIe x8 slots 0

The board offers one PCIe 4.0 x16 slot as the primary expansion slot for a discrete graphics card or similar full-bandwidth add-in card, accompanied by two PCIe x1 slots for smaller expansion cards. There are no PCIe 5.0, PCIe 3.0, PCIe 2.0, PCIe x4, PCIe x8, or legacy PCI slots present.

Audio:

audio channels 7.1
Has S/PDIF Out port ✕
audio connectors 3

The board supports 7.1-channel audio output through three analog audio connectors on the rear I/O panel. There is no S/PDIF digital audio output port.

Storage:

Supports RAID 1 ✓
Supports RAID 10 (1+0) ✓
Supports RAID 5 ✓
Supports RAID 0 ✓
Supports RAID 0+1 ✕

The board supports RAID 0, 1, 5, and 10 configurations, covering the most common setups for performance striping, mirroring, parity-based redundancy, and combined striping with mirroring. RAID 0+1 is not supported.

Final Verdict

The ASRock B860M-H2 is a focused Micro-ATX motherboard that delivers a well-rounded feature set for compact LGA 1851 builds, particularly for users who want capable storage options and memory headroom in a smaller footprint. Its DDR5 support with overclocked speeds up to 8333 MHz, combined with dual M.2 sockets, four SATA 3 connectors, and broad RAID compatibility, gives it genuine practicality for home and small office configurations. The dual BIOS and three-year warranty add a layer of long-term reliability that is worth noting. That said, the absence of built-in wireless, the two-slot memory configuration, and the limited rear USB bandwidth options mean it is best suited to users whose needs align closely with what it actually offers. For a wired, storage-oriented Micro-ATX build on the B860 platform, it covers the essentials competently.

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