The Chauvet Data Stream 4 is a universal DMX-512 optical splitter with 1 input to 4 outputs (3-pin and 5-pin). The Data Stream splitter's additional through-output (3-pin and 5-pin) links it to other Data Streams. The Chauvet Data Stream 4 DMX Splitter takes up 1 space rackmounted and is electrically isolated between input and output.