The tray for the storage of sample slides includes a plate with a plurality of cells. The plate has at least a bottom and two opposing side walls, having an entrance opening and being at least partly closed by a transverse wall. Each cell includes at least two protrusions protruding respectively at each of the side walls and forming adjacent sliding elements to guide the edges of a slide upon introduction into a cell. The bottom of each cell is inclined at an angle α relative to the plane of the tray, while the length of each slide is less than the length of the slide that is intended to be stored in a cell. The invention also relates to a cabinet for storing such a tray and a device for identifying the slides stored in such a tray.