Asus Prime B860M-A CSM Motherboard

The ASUS Prime B860M-A CSM motherboard is engineered to harness the full potential of Intel Core Ultra Processors (Series 2) with a robust power design and comprehensive cooling solutions. It features a VRM heatsink, M.2 heatsink, and PCH heatsink, along with hybrid fan headers and Fan Xpert 2+ for efficient thermal management.

This motherboard offers ultrafast connectivity with a PCIe 5.0 slot, dual M.2 slots, Realtek 2.5Gb Ethernet, and front USB 3.2 Gen 1 Type-C. It supports dual-channel DDR5 memory up to 192GB with ASUS OptiMem II technology for enhanced performance.

As part of the ASUS Corporate Stable Model (CSM) program, it includes a free copy of ASUS Control Center Express IT management software and long-term lifecycle support. The board also features ASUS 5X Protection III for enhanced durability.

Socket	Intel Socket LGA1851 (Intel B860 Chipset)
Supported CPUs	Intel Core Ultra Processors (Series 2)
Memory Type	Dual Channel DDR5
DIMM Slots	4 x DIMM Slots
Max Memory Capacity	192GB (Non-ECC, Un-buffered)
M.2 Slots	2x Total M.2 Slots (PCIe 4.0 x4)
SATA Ports	4 x SATA 6Gb/s
PCIe 5.0 x16 Slot	1 x PCIe 5.0 x16 Slot (CPU)
PCIe 4.0 x16 Slots	2 x PCIe 4.0 x16 Slots (Chipset, support x4 or x1 modes)
LAN	1 x Realtek 2.5Gb Ethernet
Wi-Fi	V-M.2 slot only (Key E, PCIe) - Wi-Fi module sold separately
Rear USB Ports	2x USB 3.2 Gen 2 (Type-A), 4x USB 2.0 (Type-A)
Video Output	1x DisplayPort 1.4, 1x HDMI 2.1
Audio	Realtek 7.1 Surround Sound High Definition Audio
Form Factor	mATX (24.4 cm x 24.4 cm)