Laptop RAM Deals (SO-DIMM)

Laptops, mini-PCs, and many all-in-ones use SO-DIMM memory — a shorter module than the full-size DIMMs desktops take, and not interchangeable with them. If you are upgrading a notebook, SO-DIMM is almost certainly what you need, in either DDR4 or DDR5 depending on how recent the machine is.

Before you buy, check two things. First, whether your laptop's memory is socketed or soldered to the board — a lot of thin-and-light models solder it down and cannot be upgraded at all. Second, whether it takes DDR4 or DDR5 SO-DIMM, since the two are not compatible and use different notches. Where you can, install a matched pair to run in dual-channel mode, which noticeably helps integrated graphics. A newer standard called CAMM2 is starting to appear in some laptops, but the vast majority of upgradeable machines still use SO-DIMM.

The listings below gather the cheapest SO-DIMM kits we track across every retailer and rank them by price per gigabyte, so you can give an older laptop a cheap and genuinely noticeable speed-up without overpaying.