ASUS AM5 PRIME B840M-R M-ATX

ASUS Prime B840M-R Micro ATX Motherboard

The ASUS Prime B840M-R Micro ATX Motherboard is a Micro ATX motherboard based on the AMD B840 chipset and AMD AM5 processor socket. It provides a foundation for AMD Ryzen 7000, 8000 and 9000 Series processors, with memory, storage, expansion, networking and rear I/O options for a compatible custom PC.

Key Features

• AMD AM5
• AMD B840
• Micro ATX
• AMD Ryzen 7000, 8000 and 9000 Series processors
• DDR5 dual-channel memory support
• Realtek Gigabit Ethernet
• High definition audio
• 1 x PCIe 4.0 x16 graphics slot
• Additional PCIe expansion slots
• 1 x PCIe 4.0 M.2 slot
• 1 x PCIe 3.0 M.2 slot
• 4 x SATA 6Gb/s ports
• HDMI
• DisplayPort
• Front USB Type-C support
• ASUS 5X Protection III
• Aura Sync RGB support
• Fan Xpert

Processor and Memory Platform

The AMD AM5 socket and AMD B840 platform support AMD Ryzen 7000, 8000 and 9000 Series processors.

Memory support is specified as DDR5 dual-channel memory support. The final supported speed and capacity depend on the processor, memory kit and BIOS configuration.

Expansion Support

The motherboard provides the following expansion connections for compatible graphics cards and add-in devices:

• 1 x PCIe 4.0 x16 graphics slot
• Additional PCIe expansion slots

Storage Connectivity

M.2 and SATA connections provide options for fast solid-state storage and additional compatible drives.

• 1 x PCIe 4.0 M.2 slot
• 1 x PCIe 3.0 M.2 slot
• 4 x SATA 6Gb/s ports

Networking

Realtek Gigabit Ethernet provides wired and, where specified, wireless network connectivity for the completed PC.

Integrated Audio

High definition audio provides onboard sound for compatible speakers, headsets and audio equipment.

Rear I/O and Display Connections

Rear USB connectivity includes USB 5Gbps Type-A and additional USB ports.

Available motherboard display outputs include HDMI, DisplayPort and require a processor with compatible integrated graphics.

Additional Motherboard Features

• Front USB Type-C support
• ASUS 5X Protection III
• Aura Sync RGB support
• Fan Xpert

Platform Specification

Expansion Slots

Storage Connections

Display Outputs

Warranty and Product Information

Please note: Processor, memory, storage and expansion compatibility depend on the exact component model and motherboard BIOS version. Motherboard display outputs require a processor with supported integrated graphics.