I picked up a pair of 3 ft USB cables, extremely different ... Series cable from Grundlagen Audio in Germany which its manufacturer claims through its gold plated Active Quantum Nanoparticle ...

Ideal for connecting subwoofer speakers to audio components ... corrosion-resistant gold-plated RCA connectors provide a consistently tighter fit than commonly rolled cables with wider tolerances.

Gold-plated audio and video cables don't enhance output quality, especially in the digital era. Gold is actually less durable than materials like nickel. Manufacturers continue to sell gold ...