This is One Set of Astro Flight Zero Loss 3 PIN Connectors for Brushless Motors. FEATURES: Has less voltage loss than an equal length of 14 gauge wire Sleeves and pins made of special alloy with the strength of steel and conductivity of copper Specially designed housing prevents reverse connections INCLUDES: One zero loss female connector w/pins One zero loss male connector w/pins SPECS: Zero Voltage Loss (when used with 13 gauge wire) Continuous Amps: 50 Peak Amps: 100 Pure Gold Content: 50 microns 2 minute rating 75 amps Maximum Wire size 13 gage Minimum wire size 18 gage Plating gold Length of pair 1.25 Inches Width 0.80 inches Weight 10 grams Astro FlightPart AST521