A method and storage system for increasing an amount of memory in a queuing area on. A plurality of data signals and clocking signals are received over a source synchronous communication channel. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. to connect the magnetoresistive element to the shields and interconnect both electrodes, a magnetoresistive head which withstands breakdown even if the insulating gap layers are made thinner is provided.