MSI MAG B660 TOMAHAWK WIFI DDR4
Board code MS-7D41 Motherboard, from 2021 3 hardware reports
Memory
Up to 64 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 64 GB seen working.
It takes DDR4-2666 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR4-2666 288-pin DIMM
- Most seen working
- 64 GB; one machine runs 64 GB
- Firmware says
- 128 GB maximum
- How sure
- 3 of 3 reports show this layout
See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 3 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the MSI MAG B660 TOMAHAWK WIFI DDR4?
Yes. 4 slots, up to 64 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).
What type of RAM does the MSI MAG B660 TOMAHAWK WIFI DDR4 use?
DDR4-2666 full-size sticks (DIMM, 288-pin).
Is this my motherboard?
The model name is printed on the board, usually between the memory slots or near the CPU socket. In Windows, open System Information and look at "BaseBoard Product"; it should read MAG B660 TOMAHAWK WIFI DDR4 or MS-7D41.