ASRock J4105B-ITX
Motherboard, from 2018 4 hardware reports
Memory
Up to 8 GB
2 laptop-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 8 GB seen working.
It takes DDR4-2400 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2400 260-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 256 GB maximum (often wrong, so we show what machines run)
- How sure
- 4 of 4 reports show this layout
See 4 GB DDR4-2400 SO-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.
2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the ASRock J4105B-ITX?
Yes. 2 slots, up to 8 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the ASRock J4105B-ITX use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the ASRock J4105B-ITX take?
Machines in the reports run up to 8 GB. The firmware reports a maximum of 256 GB, a figure that is often wrong.
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 J4105B-ITX.