Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; calculating machines, data processing equipment and computers; electric cables; patch leads; splices; enclosure kits, cable assemblies and hybrid cable assemblies; talk sets; modems; computer and communication related products including cables, adapters, connectors, switches, network switches; rack equipment including rack drawers, rack shelves, rack power distributors, rack panels for accepting electrical connectors, rack cable managers; modular wiring aids; network interface cards; plastic and metal electric project boxes; modular, fibre optic and multi-port adapters; junction boxes; cables; cords; plugs; telephones; telephone apparatus, receivers, transmitters and wires