10PCS Servo Extension Cord Fastener Fixed Block line card for RC

Fixed Block for Servo Extension Cord

Simple, Practical, Environmental Protection, Saving
Just press the extension cord plug gently into the line card and you will hear a crisp "beep" sound, and the extension cord will be connected. When disassembling, just push the two buttons to the two sides and plug them out. Put the line card and use it again next time. You can change the extension cable at any time in the field. You don't have to worry about the connection! 
Different colors correspond to four channels, and you can clearly see which channel is followed by which channel.