Schnerzinger Extreme 8000 20A power cord. The cable is 2.5M length. Very rarely seen on AudioGon. This cable was used on my CH Precision M1.1 amp. Instructions for installation and an explanation of phase is on the Schnerzinger website. I am the original owner. No box was provided by the dealer but it's easily and safely shipped by wrapping in bubble wrap and placing in a box with shipping peanuts. That’s how I got them. Buyer pays shipping using method of their choice. Pictures are of two Schnerzinger cables that are for sale; a 15A and a 20A.