This is a kind of connector used in USB General specifications: Current rating: PIN1, 51.1Amp min, PIN2, 3, 4; 1.0Amp min Voltage rating: 100V AC MIN per contact Contact resistance: 60mΩ max. Insulation resistance: 100mΩ min. Withstanding voltage: 100V AC (R.M.S) Operating temperature:-20~+70oC Materials: Contact: copper alloy Shell: stainless steel or copper alloy Housing: high temp ...