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Product Overview

The Asus PRIME B860-PLUS-CSM is an ATX motherboard built on the Intel B860 chipset for LGA 1851 processors, covering Intel Core Ultra (Series 2) CPUs. It has four DDR5 DIMM slots for up to 256 GB of dual-channel memory, three M.2 slots, four SATA III ports and a 2.5 Gigabit Ethernet port. The rear I/O includes a USB 3.2 Gen 2×2 Type-C port at 20 Gbit/s.

This board suits a mainstream Intel Core Ultra gaming or desktop build where you want plenty of storage and fan connections. Seven 4-pin PWM fan headers, three addressable RGB headers and one RGB header are fitted, and RAID 0, 1, 5 and 10 are supported. HDMI and DisplayPort outputs work only with a CPU that has integrated graphics. A BIOS update may be required to support the newest processors.

Specification

• Manufacturer: Asus
• Model: PRIME B860-PLUS-CSM
• MPN: 90MB1KA0-M0EAYC
• EAN: 4711387814857
• Chipset: Intel B860
• CPU socket: LGA 1851
• Supported processors: Intel Core Ultra 3/5/7/9 (Series 2, Arrow Lake)
• Form factor: ATX
• Memory: 4x DDR5 DIMM, dual-channel, up to 256 GB, non-ECC
• Memory speed: Up to DDR5-8200+ (OC)
• Expansion slots: 1x PCIe x16, 1x PCIe x4 (x16 slot)
• M.2 slots: 3x M.2 (M key, PCIe, 42–80 mm), plus 1x M.2 for WLAN
• SATA: 4x SATA III, RAID 0/1/5/10
• Networking: Realtek 2.5 Gigabit Ethernet, no Wi-Fi
• Rear USB ports: 1x USB-C 3.2 Gen 2×2, 2x USB-A 3.2 Gen 2, 1x USB-A 3.2 Gen 1, 2x USB 2.0
• Video outputs: 1x HDMI, 1x DisplayPort (needs CPU with integrated graphics)
• Fan and RGB headers: 7x 4-pin PWM fan, 3x ARGB, 1x RGB
• Power connectors: 24-pin ATX + 8-pin ATX12V
• Dimensions (W x D x H): 305 x 244 x 49 mm
• Weight: 896 g

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