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Asus B860M-E specifications and in-depth review

Asus B860M-E

Manufacturer: Asus

The Asus B860M-E is a Micro-ATX motherboard designed around Intel's LGA 1851 platform and the B860 chipset. Measuring 244 mm by 222 mm, it fits neatly into compact builds without sacrificing core functionality. The board ships with a three-year warranty and includes both dual BIOS and a clear CMOS feature, making firmware management straightforward for most users. While it skips built-in Wi-Fi and Bluetooth, it does offer an HDMI 1.4 output and a single RJ45 port for wired networking.

On the memory side, the B860M-E provides two DDR5 slots across dual channels, with support for up to 128GB and overclocked speeds reaching 8800 MHz. Storage connectivity includes four SATA 3 connectors, one M.2 socket, and full RAID support across levels 0, 1, 5, and 10. The board carries a single PCIe 4.0 x16 slot alongside two PCIe x1 slots for expansion. Rear I/O includes one USB 3.2 Gen 2 Type-A port, two USB 3.2 Gen 1 Type-A ports, and three USB 2.0 ports, while internal headers add further USB and fan connectivity for a total of three fan headers.

Pros
  • Dual BIOS and easy CMOS reset make firmware recovery and updates straightforward
  • Supports RAID 0, 1, 5, and 10, offering meaningful storage configuration flexibility
  • DDR5 memory with overclocked speeds up to 8800 MHz and a 128GB capacity ceiling
  • Three-year warranty provides solid long-term coverage
  • Easy overclock support adds flexibility for users who want to push memory performance
Cons
  • No Wi-Fi or Bluetooth means wireless connectivity requires additional hardware
  • Only one M.2 socket limits high-speed storage expansion
  • Just two memory slots leave no room to add modules later without replacing existing ones
  • No USB Type-C ports of any kind on the rear panel
  • No TPM connector, which may be a limitation for security-focused builds
Who is this for?

This board is a solid fit for users building a compact desktop system on the Intel LGA 1851 platform who do not require wireless connectivity. Its Micro-ATX form factor makes it well-suited for smaller cases without sacrificing core functionality. The support for RAID 0, 1, 5, and 10 across four SATA 3 connectors appeals to users who want basic storage redundancy or performance configurations. Those looking to push DDR5 memory speeds up to 8800 MHz will appreciate the overclocking flexibility, and the dual BIOS with easy CMOS reset makes it a reasonable choice for builders who want a degree of safety during firmware experimentation.

Who is this NOT for?

Users who need wireless connectivity out of the box will find this board lacking, as it includes neither Wi-Fi nor Bluetooth. With only two memory slots and a single M.2 socket, it is not well-suited for workstation or content creation builds that demand extensive storage or memory expandability. The absence of USB Type-C ports on the rear panel and the lack of Thunderbolt support make it a poor match for users who rely on modern high-speed peripherals or external devices that require those interfaces.

General info:

CPU socket LGA 1851
chipset B860
form factor Micro-ATX
supports Wi-Fi ✕
Has Bluetooth ✕
HDMI version HDMI 1.4
Easy to overclock ✓
has RGB lighting ✕
Easy to reset BIOS ✓
Has dual BIOS ✓
CPU sockets 1
Has integrated graphics ✕
warranty period 3 years
height 222 mm
width 244 mm
Has integrated CPU ✕

The Asus B860M-E is built around the LGA 1851 socket and the B860 chipset, housed in a Micro-ATX form factor measuring 244 mm by 222 mm. It supports a single CPU and does not include an integrated CPU or integrated graphics. The board features dual BIOS along with an easy CMOS reset option, simplifying firmware recovery and updates. Overclocking is supported, though the board lacks Wi-Fi, Bluetooth, and RGB lighting. Video output is handled through an HDMI 1.4 connector, and the board comes with a three-year warranty.

Memory:

maximum memory amount 128GB
overclocked RAM speed 8800 MHz
memory slots 2
DDR memory version 5
memory channels 2
Supports ECC memory ✕

The board accommodates DDR5 memory across two slots in a dual-channel configuration, supporting a maximum capacity of 128GB. Overclocked RAM speeds can reach up to 8800 MHz, offering notable headroom for memory performance tuning. ECC memory is not supported.

Ports:

USB 3.2 Gen 2 ports (USB-A) 1
USB 3.2 Gen 1 ports (USB-A) 2
USB 3.2 Gen 2 ports (USB-C) 0
USB 3.2 Gen 1 ports (USB-C) 0
USB 2.0 ports 3
USB 3.2 Gen 2x2 ports 0
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 a total of six USB ports: one USB 3.2 Gen 2 Type-A port, two USB 3.2 Gen 1 Type-A ports, and three USB 2.0 ports. There are no USB Type-C ports of any kind, and higher-bandwidth standards such as USB 3.2 Gen 2x2, USB 4, Thunderbolt 3, and Thunderbolt 4 are absent. For display output, the board includes a single HDMI port, while DisplayPort, DVI, and VGA connectors are not present. Wired networking is covered by one RJ45 port, and there are no eSATA or PS/2 ports.

Connectors:

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

Internal connectivity includes four SATA 3 connectors for storage devices, alongside one M.2 socket for faster solid-state drives. Additional USB expansion is available through two USB 3.2 Gen 1 headers, two USB 3.0 headers, and four USB 2.0 headers, allowing front-panel and bracket-mounted ports to be added as needed. Three fan headers are present for cooling management. There are no U.2 sockets, no mSATA connector, no SATA 2 connectors, and no TPM connector on this board.

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 its primary expansion lane, suitable for a discrete graphics card or other full-bandwidth add-in cards. Two PCIe x1 slots provide additional room for smaller expansion cards. No PCIe 5.0 x16, PCIe 3.0 x16, PCIe 2.0 x16, PCIe x4, PCIe x8, or legacy PCI slots are present.

Audio:

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

The board supports 7.1 surround audio and provides three analog audio connectors for connecting speakers, headphones, and microphones. There is no S/PDIF Out port available for digital audio output.

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, covering a reasonable range of configurations for performance, redundancy, and combined setups. RAID 0+1 is not supported.

Final Verdict

The Asus B860M-E is a focused Micro-ATX motherboard that delivers a capable foundation for Intel LGA 1851 builds within a compact footprint. Its support for DDR5 memory with overclocked speeds up to 8800 MHz, combined with dual BIOS, easy CMOS reset, and a broad range of RAID configurations, makes it a reliable choice for users who value stability and tuning flexibility over feature breadth. The trade-offs are clear — no wireless connectivity, limited expansion via a single M.2 socket and two memory slots, and no USB Type-C rear ports — meaning it suits straightforward desktop builds more than demanding workstation or peripheral-heavy setups. For builders who need a dependable, no-frills B860 platform with solid memory headroom and a three-year warranty, the B860M-E does its job without unnecessary complexity.

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