Will a DDR5 SO-DIMM fit your laptop?
Only if the laptop has SO-DIMM slots and was built for DDR5. SO-DIMM is the short module made for laptops and small form factor PCs, and it is not interchangeable with the full size DIMM in a desktop. DDR5 and DDR4 are not interchangeable either: the key notch sits in a different place, so a DDR4 SO-DIMM does not go into a DDR5 slot. The spec sheet or service manual of your exact model lists the type, the slot count and the maximum capacity.
If you are not sure which generation your laptop uses, start on our laptop RAM overview, which lists DDR5 and DDR4 modules side by side. Older laptops usually need the DDR4 laptop RAM page instead.
Soldered LPDDR5, CAMM2 and LPCAMM2
Many thin laptops use soldered LPDDR5 or LPDDR5X. That memory is part of the mainboard, so no module on this page will add to it, and the amount you bought is the amount you keep. JEDEC published the CAMM2 standard in December 2023. It covers DDR5 CAMM2 for performance notebooks and LPDDR5/5X CAMM2, often called LPCAMM2, for a wider range of notebooks. Both are replaceable, but they are a different module shape and do not fit a SO-DIMM slot.
This matters more now than it did a year ago. TrendForce expects DRAM supply to stay tight in 2027 and notes that laptop brands may cut memory capacity to control costs. A laptop sold with a small amount of soldered memory cannot be fixed later, so check the configuration before you buy.
Look up your laptop's exact model number, not the series name. Two versions of the same laptop can have different slots, a different DDR generation or soldered memory.
Which DDR5 laptop kit should you buy?
Match what the spec sheet lists, then pick the capacity. If the laptop has two slots, a matched kit of two modules is the usual choice: modules sold together as a kit are matched, two modules bought separately are not. Kingston's FURY Impact DDR5 line, for example, comes in 8GB to 64GB and speeds up to 6400 MT/s, and DDR5 itself starts at 4800 MT/s. A faster kit only pays off if your laptop supports that speed.
For most people 32GB is the size to aim for on a laptop that stays in use for years. This week the median 32GB DDR5 laptop kit costs $539.99, against $399.00 for the cheapest one. For the steps to fit the modules, see how to upgrade RAM. Building a desktop instead? Use the desktop DDR5 prices.