Go Power! uses industry standard MC4 connections for a secure, quick and easy connection to our solar systems. Cable lengths are 10 gauge thickness with a male connector on one end and female on the other. Our MC4 cables come in the following lengths: 3 feet, 10 feet, 15 feet, 30 feet and 50 feet. Go Power! Solar Kits come with 25 foot red and black cables. These cables also feature a male connector on one wire and female on the other along with a bare wire end for easy connection to our solar controllers.