Ripjaws is G.Skill's SODIMM line for laptops and small-form-factor systems, sold here at a single DDR5 speed grade with capacity and timing as the only variables between listings. It's a plainer, unlit design aimed at fitting a socketed laptop slot rather than a desktop board.
Every kit runs 4800 MT/s, though CL40 differs between listings — one single-stick kit in this family runs noticeably looser than the two-module kits at the same 32GB, which is worth noting since a single-module kit also means single-channel operation rather than dual. Capacity tops out at 32GB across the range, sold as 1×32GB configurations depending on the listing.
This is SODIMM DDR5, built for laptop and small-form-factor sockets rather than desktop UDIMM slots — check your system takes SODIMM memory before ordering, since the two are not interchangeable.