ASRock B860M Pro-A Micro-ATX Motherboard, LGA 1851, Intel B860, DDR5, Black

SKU: B860MPRO-A

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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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Description

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.

Specifications
Internal I/O
Number of M.2 (M) slots3
Supported storage drive interfacesM.2, SATA III
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
TPM connectorYes
Number of SATA III connectors4
Number of COM connectors1
Number of chassis fan connectors3
Front panel audio connectorYes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
RGB LED pin headerYes
Number of CPU fan connectors2
Number of EPS power connectors (8-pin)1
Technical details
Motherboard chipset familyIntel
Motherboard chipsetIntel B860
Motherboard form factormicro ATX
Component forPC
Audio
Audio output channels7.1 channels
Performance
Supported storage drive typesHDD & SSD
Windows operating systems supportedWindows 11 x64
Motherboard chipset familyIntel
Motherboard chipsetIntel B860
RAID levels0, 1, 5, 10
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Processor
Processor manufacturerIntel
Compatible processor seriesIntel Core Ultra (Series 2)
Processor socketLGA 1851 (Socket V1)
Memory
Number of memory slots4
Memory slots typeDIMM
Supported memory typesDDR5-SDRAM
Memory channelsDual-channel
Maximum internal memory256 GB
Unbuffered memoryYes
Supported memory clock speed (max)8666 MHz
ECC сompatibilityNon-ECC
Storage controllers
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2, SATA III
RAID levels0, 1, 5, 10
Number of storage drives supported7
RAID supportYes
Graphics
HDCPYes
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity3
DisplayPort version1.4
USB 2.0 ports quantity2
Microphone inYes
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DisplayPorts quantity1
USB 3.2 Gen 2x2 Type-C ports quantity1
Line-inYes
Network
Ethernet LANYes
Wi-FiNo
LAN controllerDragon RTL8125BG
Ethernet interface type2.5 Gigabit Ethernet
Top Wi-Fi standardNot available
Features
Windows operating systems supportedWindows 11 x64
Motherboard chipset familyIntel
Motherboard chipsetIntel B860
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Audio chipRealtek ALC897
Product colourBlack
Expansion slots
Number of M.2 (M) slots3
PCI Express x16 (Gen 5.x) slots1
PCI Express x4 (Gen 4.x) slots1
BIOS
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Video
HDCPYes
Software
Windows operating systems supportedWindows 11 x64
Weight & dimensions
Width244 mm
Depth244 mm
Packaging content
Cables includedSATA
Identifiers
Distributor SKUsB860MPRO-A, B860M PRO-A, 553630, CLB860MPRO-A

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