The OCR Office e-chain energy supply system was created for the better management of cables. They can be pressed into the plastic chain without the use of tools and can be replaced, rearranged and securely positioned at any time to avoid tangled cables. The energy chain can be extended as required using magnetic connectors. The patented axial adjustment mechanism of the chain links makes it easy to change the shape: when the links are pulled apart, the chain is flexible in all dimensions while it can be locked simply by squeezing the links together.