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ShopMotherboardsASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX
ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX
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ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX

£107.81

£129.37 inc. VAT

Out of Stock(0)MPN: 90MB1PK0-M0EAY0
🚚 Next-day delivery £4.95
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Product Overview

AI-generated summary

The ASUS PRIME B840M-K is a sensible, no-drama micro‑ATX board for someone building a basic AM5 system that’s meant to be reliable rather than flashy. At £106.39 ex‑VAT, it’s in that “good enough to get work done” bracket—especially if you’re pairing it with a Ryzen CPU for office workloads, light virtualization, or standard desktop use where you don’t need lots of exotic expansion. ASUS’ PRIME line usually delivers solid day‑to‑day stability and decent firmware support, which matters more in B2B than chasing headline features.

That said, I wouldn’t buy it for a server-y build, heavy multi-card setups, or anyone who expects to grow into a full gaming/creator workstation with lots of add-in hardware. Micro‑ATX boards also tend to feel tighter as your component count increases, so if you’re likely to add multiple PCIe cards, capture gear, or lots of storage expansion, you may want a larger board to avoid painting yourself into a corner. Overall: good value for straightforward AM5 rigs; not the one to pick if your plan is “start small, expand aggressively.”

Specifications

Processor

Processor manufacturerAMD
Processor socketSocket AM5
Compatible processor seriesAMD Ryzen 7000 Series,AMD Ryzen 8000 Series,AMD Ryzen 9000 Series
Supported processor socketsSocket AM5

Memory

Supported memory typesDDR5-SDRAM
Number of memory slots2
Memory slots typeDIMM
Memory channelsDual-channel
ECC сompatibilityECC & non-ECC

Storage controllers

Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2,SATA III
Number of HDDs supported4
Number of storage drives supported6
RAID supportY

Graphics

Parallel processing technology supportNot supported

Internal I/O

USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
Number of SATA III connectors4
S/PDIF out connectorY
Front panel audio connectorY

Rear panel I/O ports

USB 2.0 ports quantity2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
Ethernet LAN (RJ-45) ports1
HDMI ports quantity1

Network

Ethernet LANY
Ethernet interface type2.5 Gigabit Ethernet
Wi-FiN

Features

Motherboard chipsetAMD B840
Audio output channels7.1 channels
Product colourBlack
Component forPC
Motherboard form factorMicro ATX

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