HP ZHAN 66 Pro G1



Yes. One slot, up to 8 GB seen working.
It takes DDR4-2400 laptop-size sticks (SO-DIMM).
- Slots
- 1 SO-DIMM slot
- Type
- DDR4-2400 260-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines; one machine runs 16 GB
- Firmware says
- 16 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
- 3 of 3 reports show this layout
Worked out from 3 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

Batteries in these laptops report 48 Wh.
That is the design capacity the batteries themselves report, and the label can read 1 to 3 Wh higher. Other pack sizes may have shipped, so check the capacity printed on yours before you order.
From 3 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the HP ZHAN 66 Pro G1?
Yes. One slot, up to 8 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the HP ZHAN 66 Pro G1 use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the HP ZHAN 66 Pro G1 take?
Machines in the reports run up to 8 GB, and one runs 16 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.
Does the HP ZHAN 66 Pro G1 have an M.2 SSD slot?
Yes. The firmware lists at least 1 M.2 SSD slot, in 3 reports. Some firmware leaves a slot out, so there may be more.
What battery does the HP ZHAN 66 Pro G1 use?
Batteries in these laptops report 48 Wh, going by 3 reports. Other pack sizes may have shipped, so check the capacity printed on yours.
Is this my laptop?
Check the model name on the label underneath. It should read ZHAN 66 Pro G1.