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ASUS B840M-A Micro ATX Motherboard - AMD B840 DDR5 PCIe 4.0 WiFi 6E
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£257.33 from Onbuy.com
- Micro ATX form factor •
- Supports AMD B840 socket AMD B840 •
- DDR5 memory support •
- Multiple M.2 slots (3x) •
- More features
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Offers updated on: 26/05/2026. Paid and non-exhaustive ads ★ The ratings are generated from multiple sources, including data provided by the merchant and publicly available information.
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Features
Processor
- Processor manufacturer:AMD
- Processor socket:Socket AM5
- Compatible processor series:AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
- Supported processor sockets:Socket AM5
Memory
- Supported memory types:DDR5-SDRAM
- Number of memory slots:4
- Memory slots type:DIMM
- Memory channels:Dual-channel
- ECC сompatibility:ECC & Non-ECC
- Maximum internal memory:192 GB
- Unbuffered memory:Yes
Storage controllers
- Supported storage drive types:HDD & SSD
- Supported storage drive interfaces:M.2, SATA III
- Number of HDDs supported:4
- Number of storage drives supported:7
- RAID support:Yes
- RAID levels:0, 1, 5, 10
Graphics
- Parallel processing technology support:Not supported
Internal I/O
- USB 2.0 connectors:2
- USB 3.2 Gen 1 (3.1 Gen 1) connectors:2
- Number of SATA III connectors:4
- S/PDIF out connector:Yes
- Front panel audio connector:Yes
- Front panel connector:Yes
- ATX Power connector (24-pin):Yes
- CPU fan connector:Yes
- Number of chassis fan connectors:3
- Number of COM connectors:1
- TPM connector:Yes
- 12V power connector:Yes
Rear panel I/O ports
- USB 2.0 ports quantity:4
- USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity:1
- USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:2
- Ethernet LAN (RJ-45) ports:1
- HDMI ports quantity:1
- DisplayPorts quantity:2
- WiFi-AP antenna jack:1
Network
- Ethernet LAN:Yes
- Ethernet interface type:2.5 Gigabit Ethernet
- Wi-Fi:Yes
- Top Wi-Fi standard:Wi-Fi 6E (802.11ax)
- Wi-Fi standards:Wi-Fi 6E (802.11ax)
- Bluetooth:Yes
- Bluetooth version:5.3
Features
- Motherboard chipset:AMD B840
- Audio output channels:7.1 channels
- Component for:PC
- Motherboard form factor:micro ATX
- Motherboard chipset family:AMD
- Windows operating systems supported:Windows 10 x64, Windows 11
Expansion slots
- PCI Express x16 (Gen 3.x) slots:2
- PCI Express x16 (Gen 4.x) slots:1
- Number of M.2 (M) slots:3
- 1st M.2 largest key size:2280
- 1st M.2 highest PCI Express generation:4.0
- 2nd M.2 largest key size:2280
- 2nd M.2 highest PCI Express generation:4.0
- 3rd M.2 largest key size:2280
- 3rd M.2 highest PCI Express generation:3.0
BIOS
- BIOS type:UEFI AMI
- BIOS memory size:256 Mbit
Packaging data
- Package width:275 mm
- Package depth:275 mm
- Package height:67.5 mm
- Package weight:1.52 kg
Weight & dimensions
- Width:244 mm
- Depth:244 mm
Packaging content
- Cables included:SATA
- Antenna included:Yes
- Screws included:Yes
Price history
Lowest price on record (28/04/2026) : £103.80 • Lowest price today : £127.98
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