This category contains SO-DIMM memory modules for laptops, from older DDR2 and DDR3L to current DDR4 and DDR5. It suits anyone who wants to add memory to a laptop or replace a faulty module. Our range has over 1,000 models, with brands including 2-POWER, Lenovo, HP, Kingston and Crucial.
How to choose laptop memory
Memory type. DDR2, DDR3, DDR3L, DDR4 and DDR5 modules are not interchangeable, so first find out which type your laptop supports. Most of our range is DDR4, but we also stock DDR5, DDR3L, DDR3 and DDR2. DDR3L runs at a lower voltage than standard DDR3, so check which one your model needs.
Pin count. The number of pins separates the generations: 260-pin SO-DIMMs are DDR4, 262-pin are DDR5, 204-pin are DDR3 and DDR3L, and 200-pin are DDR and DDR2. A module with the wrong pin count simply will not seat in the slot. The category also includes a few 288-pin DIMMs, but those are meant for desktop PCs and servers, not laptops.
Capacity and module count. Our range runs from 2 GB to 64 GB, with 4, 8 and 16 GB modules the most common. For office work and browsing, 8 GB is enough for many modern laptops, while video editing or virtual machines call for 16 GB or more. If your laptop has two slots, a pair of identical modules runs in dual-channel mode and is often faster than a single one. Check the maximum capacity your laptop supports, and note that some thin laptops have soldered memory that cannot be replaced.
Speed and latency. Among DDR4 modules you will find 2400, 2666 and 3200 MHz versions. If a module is faster than your processor or motherboard supports, it will run at a lower speed, so paying extra for a higher clock rarely makes sense. Compare CAS latency only between modules of the same generation: at the same clock speed, a lower number means a slightly quicker response.
ECC support. Almost all laptop modules in our range are non-ECC, which is normal because most laptops do not support error-correcting memory. You only need an ECC module if your mobile workstation's specification explicitly asks for one.
Brands in our range
- Kingston: offers the ValueRAM series for everyday computers as well as FURY modules for gaming laptops.
- Crucial: the consumer brand of Micron, one of the largest memory chip makers.
- G.SKILL: known for high-speed memory kits for enthusiasts, including the Ripjaws series in SO-DIMM format.
- Corsair: makes Vengeance SO-DIMM modules for laptops and mini PCs.
- Samsung: produces its own memory chips, and its modules are often used as original equipment by computer makers.
- Patriot Memory: known for its Viper gaming line.
- Lenovo and HP: laptop makers that offer memory modules intended for their own models.
Also in our range: 2-POWER, CoreParts and Mushkin.
Frequently asked questions
How do I find out which memory my laptop needs?
Start with the exact laptop model and check the manufacturer's specification. It lists the memory type (for example DDR4), the maximum supported capacity and the number of slots. You can also use a system information tool that shows the type and speed of the modules already installed.
Can I install a larger module than the original?
Yes, as long as the laptop supports that capacity and has a suitable slot. The maximum depends on the processor and motherboard, so check it in the manufacturer's specification. If the memory is soldered, it cannot be replaced.
Are DDR4 and DDR5 SO-DIMM modules compatible?
No, they are not. A DDR4 SO-DIMM has 260 pins and a DDR5 one has 262, and the notch on the edge sits in a different place, so a module will not fit the wrong slot. Buy the generation your laptop supports.
How much RAM does a laptop need?
For browsing, office applications and video calls, 8 GB is usually enough. Programming, photo or video editing and virtual machines are more comfortable with 16 GB or more. If there are two slots, a matched pair of modules generally performs better than a single one.
