The KONTRONIK high performance connector system is made from silver-plated brass, meeting all the requirements for a good connector system:
Low contact resistance - Silver-plating with a brass cross-section for an excellent electrical conductivity. Extremely light-weight - Connectors are hollow for a reduced weight. Good solderability - Unique soldering post for lengthwise or crosswise orientation of cable. Low weight, small size and safe contact make it what it is - a connector system useful for competition. It is often used at world championships.