HP ProBook 455 G6
Laptop, from 2021 2 hardware reports
Memory
Up to 16 GB
2 laptop-size slots
SSD
1+ M.2
At least 1 M.2 SSD slot
SSD length and charger
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Upgradable
Yes. 2 slots, up to 16 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
- 16 GB; one machine runs 16 GB
- Firmware says
- 32 GB maximum
- SSD slots
- At least 1 M.2 SSD slot listed by the firmware
- How sure
- 2 of 2 reports show this layout
See 8 GB DDR4-2400 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the HP ProBook 455 G6?
Yes. 2 slots, up to 16 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the HP ProBook 455 G6 use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
Does the HP ProBook 455 G6 have an M.2 SSD slot?
Yes. The firmware lists at least 1 M.2 SSD slot, in 2 reports. Some firmware leaves a slot out, so there may be more.
Is this my laptop?
Check the model name on the label underneath. It should read ProBook 455 G6.