The adapters are not colour coded and can be used for digital or analogue transmissions.

Gold plated connectors - Solid metal alloy with a 24 carat gold plating. These connectors don't have a lacquer protection because they do not need it (gold will not tarnish). 24 carat gold achieves better conductivity when lacquer is not in use and provides a better signal with minimal loss of quality.

Excellent standard of manufacture.

The connectors are not joined together and can be used independantly of each other.

Perfect for connecting/coupling two cables together, whilst maintaining a high quality connection. For example, two of these connectors could be used to connect two audio cables (male ended) to extend the length of a cable going from a CD player to an amplifier.

They can be used the majority of cables that feature RCA male connections, if you are unsure, please ask!