Trident Z5 RGB is the design G.Skill built its DDR5 reputation on — a crystalline light bar across the top of each stick, distinct from the plainer Aegis and Ripjaws lines the brand also sells. Unlike the Neo variant tuned specifically for AMD boards, this is the general-purpose version validated more broadly.
Speed is what actually separates the listings here: this kit is 2×16GB rated 6000 MT/s CL36, giving 32GB, and the family spans a real range of grades under the same name and finish. The rated number only applies with EXPO or XMP enabled in the board's firmware — without it, the same stick runs at a slower JEDEC default.
It's DDR5 UDIMM, tall enough to check clearance against a large tower cooler before it goes in.