HP EliteBook 840 G6
Yes. 2 slots, up to 32 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
- 32 GB in two or more machines; one machine runs 64 GB
- Firmware says
- 32 GB maximum
- How sure
- 137 of 137 reports show this layout
Worked out from 137 hardware reports of this laptop. Sources and method. Updated 10 Nov 2026.
Yes. It takes an NVMe M.2 SSD.
The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
- Drive type
- NVMe (PCIe)
- Slot speed
- PCIe 3.0 x4, from 120 machines
- M.2 slots
- At least 1
- Length
- Check your current drive
- How sure
- NVMe drive in 161 of 180 machines
From 180 PCI device reports and the firmware's slot table. Sources and method. Updated 10 Nov 2026.
Illustration Batteries in these laptops report 50 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.
- Capacity
- 50 Wh
- Pack code
- SS03050XL
From 137 battery readings. Sources and method. Updated 10 Nov 2026.
Illustration Match the label on your charger.
We don't have this model's charger rating yet. The label on your charger shows it: the output line gives volts and amps, and volts times amps is the watts (19.5 V at 3.33 A is 65 W). Buy one with the same plug, the same voltage and at least as many watts.
- Rated output
- On your charger's label
How to read a charger label. Sources and method. Updated 10 Nov 2026.
Illustration Questions
Can I upgrade the RAM in the HP EliteBook 840 G6?
Yes. 2 slots, up to 32 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the HP EliteBook 840 G6 use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the HP EliteBook 840 G6 take?
Machines in the reports run up to 32 GB, and one runs 64 GB. That matches the 32 GB maximum the firmware reports.
What SSD does the HP EliteBook 840 G6 take?
Yes. It takes an NVMe M.2 SSD. The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
What battery does the HP EliteBook 840 G6 use?
Batteries in these laptops report 50 Wh. The pack code is SS03050XL. Check the capacity printed on yours before you order.
Is this my laptop?
Check the model name on the label underneath. It should read EliteBook 840 G6.