How much RAM does the MSI PRO B840M-B support?

The PRO B840M-B supports up to 128GB of memory.

What type of memory does the PRO B840M-B use?

It uses DDR5 CUDIMM/UDIMM memory modules.

Compatible drive types: NVMe M.2 2260 (PCIe Gen 4) SSD, NVMe M.2 2280 (PCIe Gen 4) SSD, SATA 2.5" SSD, SATA M.2 2280 SSD.

Guaranteed-compatible SSD and hard-drive upgrades for the MSI PRO B840M-B, matched to its drive bays and slots.

Verified compatible

Guaranteed-compatible SSD and hard-drive upgrades for the MSI PRO B840M-B — matched to its drive bays and slots.

This option is out of stock.

Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

This option is out of stock.

This option is out of stock.

This option is out of stock.

This is a SATA (not NVMe) M.2 drive — confirm your M.2 slot supports SATA drives.

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Guaranteed-compatible SSD and hard-drive upgrades for the MSI PRO B840M-B, matched to its drive bays and slots.

Verified compatible

Guaranteed-compatible SSD and hard-drive upgrades for the MSI PRO B840M-B — matched to its drive bays and slots.

This option is out of stock.

Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

This option is out of stock.

This option is out of stock.

This option is out of stock.

This is a SATA (not NVMe) M.2 drive — confirm your M.2 slot supports SATA drives.