AMD Core PRIME B840M-R AMD B840 Socket AM5 micro ATX
- Depth
- 229 mm
- Wi-Fi
- N
- Width
- 236 mm
- Height
- 36.5 mm
- Weight
- 563 g
- Line-in
- Y
- BIOS type
- UEFI AMI
- RAID levels
- 0,1,5,10
- Ethernet LAN
- Y
Overview
Prime B840M-R
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840M-R motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
Compatibility
- Pairs with CPUs using the Socket AM5 socket.
- Physical size is Micro ATX — check your case supports this form factor.
Compatibility data is automatically generated. Always verify critical specs before purchase.
Technical Specifications
Showing 28 key specifications of 72
All values come from this product’s catalog record.- Depth
- 229 mm
- Wi-Fi
- No
- Width
- 236 mm
- Height
- 36.5 mm
- Weight
- 563 g
- Line-in
- Yes
- BIOS type
- UEFI AMI
- RAID levels
- 0,1,5,10
- Ethernet LAN
- Yes
- RAID support
- Yes
- Intended use
- PC
- Microphone input
- Yes
- TPM connector
- Yes
- Colour
- Multicolour
- Memory channels
- Dual-channel
- BIOS memory size
- 256 MB
- Socket
- Socket AM5
- CPU fan connector
- Yes
- Headphone outputs
- 1
- Memory slots type
- DIMM
- Unbuffered memory
- Yes
- ECC сompatibility
- non-ECC
- Top Wi-Fi standard
- Not available
- USB 2.0 connectors
- 2
- USB connector type
- USB Type-A
- 12V power connector
- Yes
- HDMI ports
- 1
- Chipset
- AMD B840
Show all 72 specifications
- PS/2 ports
- 1
- DVI-D ports quantity
- 0
- S/PDIF out connector
- Yes
- Audio channels
- 7.1
- DisplayPorts quantity
- 1
- Memory slots
- 2
- CPU brand
- AMD
- Supported memory types
- DDR5-SDRAM
- USB 2.0 ports
- 2
- Ethernet interface type
- Gigabit Ethernet
- Max memory
- 128 GB
- Form factor
- Micro ATX
- Number of M.2 (M) slots
- 2
- 1st M.2 largest key size
- 2280
- Number of COM connectors
- 1
- Number of HDDs supported
- 4
- Ethernet ports
- 1
- Motherboard chipset family
- AMD
- VGA ports
- 0
- Compatible processor series
- AMD Ryzen 9000 Series,AMD Ryzen 8000 Series,AMD Ryzen 7000 Series
- EPS power connector (8-pin)
- Yes
- Front panel audio connector
- Yes
- ATX Power connector (24-pin)
- Yes
- Number of CPU fan connectors
- 1
- Number of SATA III connectors
- 4
- Supported storage drive types
- HDD & SSD
- PCI Express x1 (Gen 3.x) slots
- 1
- PCI Express x16 (Gen 4.x) slots
- 1
- Number of chassis fan connectors
- 2
- Number of storage drives supported
- 6
- Supported memory clock speed (max)
- 7600
- Supported storage drive interfaces
- M.2,SATA III
- Windows versions supported
- Windows 11,Windows 10 x64
- USB 3.2 Gen 1 (3.1 Gen 1) connectors
- 1
- USB 3.2 Gen 2 (3.1 Gen 2) connectors
- 0
- Parallel processing technology support
- Not supported
- USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
- 4
- USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity
- 0
- USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
- 0
- USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
- 0
- Package depth
- 270 mm
- Package width
- 260 mm
- Package height
- 51.5 mm
- Package weight
- 924 g
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