The ASRock B860M Pro-A is a compact Micro-ATX motherboard designed for Intel processors, offering a solid foundation for building a capable and modern desktop system. Built around the Intel B860 chipset and supporting Socket 1851, it is compatible with both Intel Core Ultra Series 1 and Series 2 processors. The board features four DDR5 DIMM slots with dual-channel support and a maximum capacity of 256 GB, along with memory overclocking support up to 8666 MHz. Its sleek black design fits well in a variety of system builds.
Connectivity and Expansion
The ASRock B860M Pro-A offers extensive connectivity options for storage and expansion. Three M.2 slots and four SATA III connectors provide ample room for fast NVMe drives alongside traditional storage solutions. A single PCIe x16 Gen 5 slot handles discrete graphics cards, while display output is covered by one HDMI port and one DisplayPort 1.4, both with HDCP support. USB connectivity includes five USB 3.2 Gen 1 Type-A ports and one USB 3.2 Gen 1 Type-C port, complemented by two USB 3.1 Gen 1 internal headers.
Audio and Networking
For audio, the board uses a Realtek ALC897 chip delivering 7.1-channel output, along with a front panel audio connector for convenient headset access. Networking is handled by the Dragon RTL8125BG controller, supporting 2.5 Gigabit wired Ethernet for fast and stable connections. Note that neither Wi-Fi nor Bluetooth are included, making a wired connection the primary networking option on this board.
Product number manufacturer:
90-MXBRR0-A0UAYZ
Audio
BIOS
Connectivity
USB 3.2 (Gen 1) type A ports:
5
USB 3.2 (Gen 1) type C ports:
1
Internal I/O
ATX Power connector (24-pin):
Chassis fan connector(s):
3
Front panel audio connector:
USB 3.1 (Gen 1) header(s):
2
Memory
Supported memory clock speeds (OC):
8666 (OC) MHz
Networking
Network technology (wired):
Packaging content
Physical characteristics
Processor
Compatible processor series:
Intel Core Ultra Series 1, Intel Core Ultra Series 2
Sockets
Technical details
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