2-red, 2-black locking RCA connectors with 8mm cable entry and screw-type strain relief. Dayton Audio Connectors are designed with the audiophile in mind. 24 kt gold plating ensures the highest possible signal transfer and resists harsh environmental corrosion. These precision-machined connectors are made to last and last. Dayton Audio connectors have been designed to allow your systems to reach their fullest potential!