This 3 feet Digital Optical Fiber Optic provides you the cleanest possible signal, even at extreme volume levels. It uses 1mm low-loss core, low-jitter synthetic fiber and heavy metal connectors to dampen vibration, giving you the ultimate listening experience. Connectors are Toslink Male. Optical cables transfer the signal using light，thus completely eliminating any chance for RFI, EMI or ground loop interference. The PVC heavy jacket with mesh tube helps prevent cable damage and adds flexibility and durability for years of listening pleasure. Gold-plated ferrule prevents corrosion and provides for maximum protection of the fiber tip. Precision polished fiber tips for maximum signal transfer (includes tip protectors). Applications include, but not limited to CD, D/A Converters, Dolby Digital DTS Surround sound receivers, DVD, MiniDisk players and recorders and Pro Audio cards. Customization: Mounded strain relief for reducing stress where cable and connectors meet.