Neptune digital interconnects are hand-crafted with precision! They are fashioned using single crystal copper and surrounded by Purist Audio Design's proprietary Fluid® dampening material. Digital interconnects are offered in SPDIF 75 Ohm (Purist Audio Design’s Gol RCA or BNC) and AES/EBU 110 Ohm (Gold 3-pole XLRs). Available lengths start at 1.0 M (3.3 Ft.) and increase by 0.5 M (1.6 Ft.) lengths. The Neptune digital interconnects are directional, and the arrows indicate the direction of the signal.