Asus PRIME B840M-K-CSM
Category: Motherboard
Manufacturer: ASUS
Socket: AM5
Chipset: B840M
Form Factor: Micro-ATX
Memory: DDR5
Price: $183.99 from Newegg
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Asus PRIME B840M-K-CSM
Socket
AM5
Chipset
B840M
Form Factor
Micro-ATX
Memory
DDR5
Best price from Newegg
$183.99
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Overview
An Micro-ATX board on the B840M chipset, AM5 socket. Expansion includes 2 M.2 slots and 2 PCIe slots. Memory support covers 2 DDR5 slots up to 128GB total. Match the socket to your CPU generation first; chipset features second.
Its $183.99 price tag places it squarely in mid-range territory. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Warranty coverage follows ASUS's standard policy — confirm regional terms on the listing. Every published spec is tabulated below, and compatibility against your current part list is checked automatically.
| Specification | Value |
|---|---|
| Wi-Fi | No |
| Socket | AM5 |
| Chipset | B840M |
| M.2 Slots | 2 |
| PCIe Slots | 2 |
| Bluetooth | No |
| Max Memory | 128 GB |
| Form Factor | Micro-ATX |
| Memory Type | DDR5 |
| Memory Slots | 2 |
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