Kensington Port Replicator/Expansion Dock with USB, SER, PAR, ETH for Dell Inspiron (TM) - 33232 Add or remove devices without turning off computer - port replicator provides 5.1 audio jacks, parallel, serial and three USB 2.0 ports A single USB plug quickly connects notebook to keyboard, printer, network and USB 2.0 devices 5.1 surround sound support includes rear, front, and center speaker outputs High-speed USB 2.0 provides 40 times faster transfers than USB 1.1. Slim design and cable management eliminate desktop clutter