What's the difference between a cable tray and a cable raceway?

A tray is an open basket or channel mounted under or behind a desk to hold power strips and cable slack, while a raceway (J-channel or paintable cover) routes and conceals cords along a desk edge or wall. Some products in this category, like J-channel kits and wall cord hiders, are concealment tools rather than load-bearing trays, so match the format to whether you're hiding runs or corralling a power strip.