ASRock Z370 Killer SLI/ac

Motherboard, from 2017 4 hardware reports
Memory
Up to 32 GB
4 full-size slots
SSD
2+ M.2
At least 2 M.2 SSD slots
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; one machine runs 48 GB
Firmware says
64 GB maximum (often wrong, so we show what machines run)
SSD slots
At least 2 M.2 SSD slots listed by the firmware
How sure
4 of 4 reports show this layout
See 8 GB DDR4-2133 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 4 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 Z370 Killer SLI/ac?

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

What type of RAM does the ASRock Z370 Killer SLI/ac use?

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

How much RAM can the ASRock Z370 Killer SLI/ac take?

Machines in the reports run up to 32 GB, and one runs 48 GB. The firmware reports a maximum of 64 GB, a figure that is often wrong.

Does the ASRock Z370 Killer SLI/ac have an M.2 SSD slot?

Yes. The firmware lists at least 2 M.2 SSD slots, in 4 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 Z370 Killer SLI/ac.