MSI PRO B840M-B
Category: Motherboard
Manufacturer: MSI
Socket: AM5
Chipset: B840M
Form Factor: Micro-ATX
Memory: DDR5
Price: $129.99 from Amazon

MSI PRO B840M-B
Socket
AM5
Chipset
B840M
Form Factor
Micro-ATX
Memory
DDR5
Best price from Amazon
$129.99
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Overview
This is an Micro-ATX board on the B840M chipset, AM5 socket. Expansion covers 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. At $129.99 it sits in the mid-range motherboard bracket.
PlanMyPC's builder flags compatibility problems automatically and tracks the latest motherboard deals from multiple stores. Support and warranty service run through MSI, with terms that vary by region. Every published spec is tabulated below, and compatibility against your current part list is checked automatically. The category page surfaces comparable models near the same price, which makes shortlisting against this motherboard straightforward.
| 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 |





