Kensington 60702 Notebook Expansion Dock with Adjustable Base Kensington 60702 Notebook Expansion Dock with Adjustable Base SmartFit system adjusts screen height to optimal ergonomic setting. Detachable dock provides 5.1 audio, Ethernet, parallel and serial, and USB 2.0 connections. A single USB 2.0 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.