ASRock B860M Pro-A Micro-ATX Motherboard, LGA 1851, Intel B860, DDR5, Black
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About This Item
- Intel B860 chipset with LGA 1851 socket supporting Intel Core Ultra processors
- DDR5-SDRAM memory compatibility up to 256 GB across four DIMM slots
- Micro-ATX form factor measuring 244 mm by 244 mm
- Three M.2 slots and four SATA III connectors for up to seven storage drives
- Dragon 2.5 Gigabit Ethernet controller for high-speed wired networking
- Realtek ALC897 audio chip delivering 7.1 channels of sound output
- USB 3.2 Gen 2×2 Type-C ports and multiple PCIe generation slots
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ASRock B860M Pro-A – Solid Micro-ATX Foundation
If you are planning an efficient system build, the ASRock B860M Pro-A Micro-ATX Motherboard, LGA 1851, Intel B860, DDR5, Black delivers reliable performance for daily computing tasks. This platform suits modern system builders looking for stability and efficient heat management. Because it supports the latest Intel Core Ultra processors, you get strong core processing power right away.
Key specs at a glance
| Metric | Spec. |
|---|---|
| Socket | LGA 1851 |
| Chipset | Intel B860 |
| Form Factor | Micro-ATX |
| Memory Support | DDR5 |
| Ethernet | 2.5 Gigabit |
Power delivery and stable operation
Our team appreciates the robust 10+1+1 power phase layout designed to feed your processor smoothly. Integrated Dr.MOS components manage thermal output efficiently during demanding tasks. Also, the high-density power connectors reduce resistance during heavy loads. Because of the six-layer PCB design, signal traces remain clean and energy efficiency stays high.
Advanced memory and storage options
You can push your DDR5 modules further by enabling pre-tested XMP and EXPO profiles. This motherboard includes three M.2 M slots for fast solid-state drives. Furthermore, the primary slot supports PCIe 5.0 speeds for rapid data transfers. Such bandwidth ensures your applications load instantly and large files move without delay.
Connectivity and networking performance
Networking tasks run smoothly thanks to the onboard Dragon 2.5 Gb/s LAN controller. It provides higher bandwidth than standard gigabit connections for streaming and gaming. Also, rear and front USB Type-C ports offer fast peripheral connectivity. For visual output, you can use both HDMI and DisplayPort options simultaneously.
Customisation and ease of use
Onboard RGB headers let you connect and synchronise compatible lighting accessories easily. SignalRGB software unifies your lighting effects across different hardware devices. In addition, the pre-installed LAN driver simplifies your initial operating system setup process. You can update necessary system files without needing an optical disc drive.
Worth checking first
- Confirm your processor matches the LGA 1851 socket requirements.
- Confirm your chassis supports micro-ATX form factor dimensions.
- Confirm your memory modules use the DDR5 standard.
Frequently Asked Questions
Q: Does this motherboard support Wi-Fi out of the box?
A: No, this model relies on wired 2.5 Gigabit Ethernet for network connectivity.
Q: What memory type does the ASRock B860M Pro-A Micro-ATX Motherboard, LGA 1851, Intel B860, DDR5, Black accept?
A: It accepts unbuffered DDR5 memory modules in a dual-channel configuration.
Q: How many storage drives can be installed?
A: You can install up to seven storage drives using the available M.2 and SATA ports.
Q: Is a CPU required to update the BIOS?
A: No, the onboard BIOS Flashback feature lets you update using just a USB drive and power supply.
## The final verdictThis hardware choice suits builders who want a dependable micro-ATX platform for modern Intel processors. It balances robust thermal cooling with fast connectivity options. Warranty cover varies by product, so please contact us to confirm.
| Internal I/O | |
|---|---|
| Number of M.2 (M) slots | 3 |
| Supported storage drive interfaces | M.2, SATA III |
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| TPM connector | Yes |
| Number of SATA III connectors | 4 |
| Number of COM connectors | 1 |
| Number of chassis fan connectors | 3 |
| Front panel audio connector | Yes |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| RGB LED pin header | Yes |
| Number of CPU fan connectors | 2 |
| Number of EPS power connectors (8-pin) | 1 |
| Technical details | |
| Motherboard chipset family | Intel |
| Motherboard chipset | Intel B860 |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Audio | |
| Audio output channels | 7.1 channels |
| Performance | |
| Supported storage drive types | HDD & SSD |
| Windows operating systems supported | Windows 11 x64 |
| Motherboard chipset family | Intel |
| Motherboard chipset | Intel B860 |
| RAID levels | 0, 1, 5, 10 |
| Audio output channels | 7.1 channels |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Processor | |
| Processor manufacturer | Intel |
| Compatible processor series | Intel Core Ultra (Series 2) |
| Processor socket | LGA 1851 (Socket V1) |
| Memory | |
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Supported memory types | DDR5-SDRAM |
| Memory channels | Dual-channel |
| Maximum internal memory | 256 GB |
| Unbuffered memory | Yes |
| Supported memory clock speed (max) | 8666 MHz |
| ECC сompatibility | Non-ECC |
| Storage controllers | |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | M.2, SATA III |
| RAID levels | 0, 1, 5, 10 |
| Number of storage drives supported | 7 |
| RAID support | Yes |
| Graphics | |
| HDCP | Yes |
| Rear panel I/O ports | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 3 |
| DisplayPort version | 1.4 |
| USB 2.0 ports quantity | 2 |
| Microphone in | Yes |
| HDMI ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 2x2 Type-C ports quantity | 1 |
| Line-in | Yes |
| Network | |
| Ethernet LAN | Yes |
| Wi-Fi | No |
| LAN controller | Dragon RTL8125BG |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Top Wi-Fi standard | Not available |
| Features | |
| Windows operating systems supported | Windows 11 x64 |
| Motherboard chipset family | Intel |
| Motherboard chipset | Intel B860 |
| Audio output channels | 7.1 channels |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Audio chip | Realtek ALC897 |
| Product colour | Black |
| Expansion slots | |
| Number of M.2 (M) slots | 3 |
| PCI Express x16 (Gen 5.x) slots | 1 |
| PCI Express x4 (Gen 4.x) slots | 1 |
| BIOS | |
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Video | |
| HDCP | Yes |
| Software | |
| Windows operating systems supported | Windows 11 x64 |
| Weight & dimensions | |
| Width | 244 mm |
| Depth | 244 mm |
| Packaging content | |
| Cables included | SATA |
| Identifiers | |
| Distributor SKUs | B860MPRO-A, B860M PRO-A, 553630, CLB860MPRO-A |

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