ASRock B860M Pro RS - Motherboard - Micro ATX - LGA 1851 - B860

ASRock B860M Pro RS brings Intel LGA 1851 (Socket V1) compatibility to a compact micro-ATX platform ideal for modern desktops.

This motherboard is built around the Intel B860 chipset and supports Intel processors in the LGA 1851 socket, giving you access to the latest CPU families and strong platform longevity. Its EFI AMI BIOS with 256 Mbit memory provides a familiar and flexible firmware environment for tuning and updates.

Memory support is a standout feature, with four DIMM slots for DDR5-SDRAM in a dual-channel configuration and up to 256 GB of unbuffered memory, which is excellent for content creation, multitasking, and demanding productivity applications.

Storage flexibility includes one M.2 slot plus four SATA III connectors, allowing up to seven drives when combined with expansion, and full RAID support for levels 0, 1, 5, and 10 for redundancy or performance arrays. SATA cables are included to get you started quickly.

Connectivity is comprehensive for a micro-ATX board: two USB 2.0 ports, three USB 3.2 Gen 1 Type-A ports, one USB 3.2 Gen 2x2 Type-C port, two HDMI ports, one DisplayPort 1.4, and a 2.5 Gigabit Ethernet port driven by the Dragon RTL8125BG controller. Audio is handled by the Realtek ALC897 codec with 7.1-channel output and standard line-in and microphone inputs.

Expandability and cooling are well covered with one PCIe x16 Gen 5 slot and one PCIe x4 Gen 4 slot for GPUs and high-speed add-in cards, two CPU fan headers, three chassis fan headers, an 8-pin EPS power connector, and a 24-pin ATX power connector. Four RGB LED pin headers and a TPM connector provide customization and security options.

Typical use cases for the ASRock B860M Pro RS include a compact gaming rig with a modern Intel CPU, a capable workstation for video/photo editing leveraging DDR5 memory and RAID storage, or a stable office PC with hardware RAID and 2.5 GbE networking. Its micro-ATX 244 mm x 244 mm form factor fits many mid-compact cases while offering robust features.

In short, the ASRock B860M Pro RS is a balanced micro-ATX motherboard that emphasizes DDR5 support, modern I/O including USB-C and DisplayPort 1.4, and reliable networking, making it a solid choice for users building a small but powerful Intel-based PC.

• Socket: LGA 1851 (Socket V1) — Intel compatible
• Memory: 4x DDR5 DIMM, up to 256 GB, dual-channel
• Storage: 1x M.2, 4x SATA III, RAID 0/1/5/10
• Networking: 2.5 GbE (Dragon RTL8125BG)
• Expansion: 1x PCIe x16 Gen5, 1x PCIe x4 Gen4