Extension Blocks, Power and Connector Leads are a convenient method of neatly bring power to the desk for distribution to monitors, laptops and other on desk equipment. Extension Blocks are available with 4 outlets and compatible Connector Leads in a number of lengths. Power Cables are the safest way to bring electrical power to the desk, avoiding a profusion of trailing cables. These under desk power modules are tested on function and cosmetic appearance as well as complying to British Standards.