The Poseidon Reference GL power cable is a remarkable upgrade on source, digital, and amplifiers. Featuring ultra-pure, stranded copper conductors, and cryogenically treated Wattgate connectors in a 12 gauge design, its sonic benefits are improved transparency, increased bass detail, and a life like musical presentation from a black silent background. Proudly Handcrafted in the USA. All Silnote power cables are triple shielded, UL listed, CSA certified, and ROHS compliant. Voltage rated at 300 volts tested at 400 volts.