ASRock X370 Pro4

Motherboard, from 2018 9 hardware reports
Memory
Up to 32 GB
4 full-size slots
SSD
1+ M.2
At least 1 M.2 SSD slot
SSD length
Coming next
Checked from separate sources
Upgradable

Yes. 4 slots, up to 32 GB seen working.

It takes DDR4-2133 full-size sticks (DIMM).

Slots
4 DIMM slots
Type
DDR4-2133 288-pin DIMM
Most seen working
32 GB in two or more machines
Firmware says
128 GB maximum (often wrong, so we show what machines run)
SSD slots
At least 1 M.2 SSD slot listed by the firmware
How sure
9 of 9 reports show this layout
See 8 GB DDR4-2133 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 9 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 ASRock X370 Pro4?

Yes. 4 slots, up to 32 GB seen working. It takes DDR4-2133 full-size sticks (DIMM).

What type of RAM does the ASRock X370 Pro4 use?

DDR4-2133 full-size sticks (DIMM, 288-pin).

How much RAM can the ASRock X370 Pro4 take?

Machines in the reports run up to 32 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.

Does the ASRock X370 Pro4 have an M.2 SSD slot?

Yes. The firmware lists at least 1 M.2 SSD slot, in 9 reports. Some firmware leaves a slot out, so there may be more.

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 X370 Pro4.