The Radial Cube is a compact desktop 3-slot 500 series power rack that follows the guidelines set out in the Workhorse open-source document (Whos-Doc). This accommodates the very latest Radial modules while being backward compatible with older formats. Regarding the audio performance – there is no audio circuitry other than connectors. The Cube will not impart any color, distortion or artefact. The Cube employs Edac gold plated 15-pin card-edge connectors on the inside and Neutrik connectors with non-tarnishing nickel-silver contacts on the back panel for excellent signal transfer. Each slot is equipped with an auto-resetting fuse to protect the system should a faulty module be employed. A 500 milliamp external supply provides plenty of current to feed the modules and 48V for phantom power.