A two layer splitter tray (18) has a cover (32) which mounts to a base (34). The base (34) and the cover (32) define openings for one or more splitters (88). The base (34) and cover (32) include cable management devices (42, 64) for managing the cable and fiber inputs and outputs, and the splices. Further splice trays (16) can be used with the splitter tray (18) for splicing to the splitter outputs. Other trays (100, 200) include a partial cover (140, 240) and openings for optical components and for adhesive attachment of parts.