ASUS PRIME B840M-A WIFI mATX Motherboard | AM5 | 4x DDR5 Slots | Wi-Fi 6E

Sku: 90MB1J20-M0EAY0
Availability: In Stock
Brand: ASUS
Category: Motherboards
Regular price £123.37
Regular price Sale Price £123.37

KEY FEATURES

  • AMD Socket AM5 AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
  • PC micro ATX AMD B840 7.1 channels
  • DDR5-SDRAM 4 DIMM Maximum internal memory: 192 GB
  • HDD & SSD M.2, SATA III RAID support Number of storage drives supported: 7
  • BIOS type: UEFI AMI 256 Mbit
  • 2.5 Gigabit Ethernet Wi-Fi Wi-Fi 6E (802.11ax) Bluetooth 5.3
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ASUS PRIME B840M-A WIFI mATX Motherboard | AM5 | 4x DDR5 Slots | Wi-Fi 6E

ASUS PRIME B840M-A WIFI mATX Motherboard | AM5 | 4x DDR5 Slots | Wi-Fi 6E

Regular price £123.37
Regular price Sale Price £123.37
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Description Specification Review FAQ

Description

The ASUS PRIME B840M-A WIFI brings modern AM5 platform capabilities to a compact micro ATX form factor. Supporting the latest AMD Ryzen 7000, 8000, and 9000 series processors, this motherboard delivers contemporary performance in a space-efficient design that fits smaller cases without sacrificing essential features. The B840 chipset provides a solid foundation for mainstream builds, whether you're assembling a compact workstation or a versatile home PC.

Memory support extends to 192GB across four DDR5 DIMM slots, accommodating both ECC and non-ECC modules for professional applications or standard gaming setups. Storage connectivity is comprehensive with three M.2 slots - two supporting PCIe 4.0 for high-speed NVMe drives and a third PCIe 3.0 slot for additional expansion. The single PCIe x16 slot handles modern graphics cards, while integrated Wi-Fi eliminates the need for separate wireless adapters in compact builds where internal space is limited.

ASUS includes practical installation accessories with screws for M.2 drives and a Wi-Fi antenna to get wireless connectivity working immediately. The micro ATX footprint makes this board suitable for smaller cases while retaining full-size expansion capabilities where they matter most. Four SATA 6Gb/s ports provide traditional storage options alongside the M.2 slots, giving builders flexibility in drive selection and RAID configurations.

Feature

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Shipping Information

  • Next Business Day:  £6.99

  • 2 days Delivery: £4.99

  • 3- 5 Days Shipping: £3.99

  • Orders Over £99.00: Free Standard Delivery
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 storage drives supported 7
Number of HDDs supported 4
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
12V power connector Yes
TPM connector Yes
Number of COM connectors 1
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
Component for PC
Motherboard form factor micro ATX
Motherboard chipset family AMD
Motherboard chipset AMD B840
Audio output channels 7.1 channels
Windows operating systems supported Windows 10 x64, Windows 11
Expansion slots
PCI Express x16 (Gen 4.x) slots 1
PCI Express x16 (Gen 3.x) slots 2
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
Antenna included Yes
Screws included Yes
Cables included SATA

Frequently Asked Questions

What processors are compatible with the ASUS PRIME B840M-A WIFI?

This motherboard is compatible with AMD Ryzen 7000, 8000, and 9000 series processors. Socket AM5

How much memory can the ASUS PRIME B840M-A WIFI support?

It supports up to 192GB of DDR5 memory across 4 DIMM slots.

Does the motherboard support Wi-Fi?

Yes, it features Wi-Fi 6E (802.11ax) for high-speed wireless connectivity.

What storage options are available on this motherboard?

The motherboard includes 3 M.2 slots and 4 SATA 6Gb/s ports for versatile storage configurations.

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