- USB - RS232 Controller Interface LeadSKU: ZSIMUSB£94.05Motor Controller will suit all the standard motorisation offer by VACGEN. This is a rack mounted 3U 1/3rd single axis controller with a robust long life design. This comes with a simple software package, which when purchased with a motorised component, will be a plug and play out of the box. The unit can be used in either open or closed loop (Encoder) configuration. We also offer a full range of cables and optional extras.