Empty module holder for holding data, COAX and fiber optic modules, installation form: module, mounting on top hat rail (TH35) or screwable on support frame or mounting plate, 3-part: Consists of 1 module holder made of bent sheet metal and 2 milled plastic holders, universally applicable for all variants, mounting of the plastic holders on top hat rail and perforated sheet metal, functional potential equalization according to DIN EN 50310 (VDE0800-2-310) with 2 screw fastenings possible via grounding screw M6x10 with nut and toothed washer, 1 labeling strip on module holder, variants: 12, 16, 24 port