Male DC Power adapter - 2.1mm plug to screw terminal block : ID 369 : $2.00 : Adafruit Industries, Unique & fun DIY electronics and kits
JANDECCN 4Pcs 10Pin 5.08mm Pitch DIY PCB Mount Screw Terminal Block Connector with 4Pcs 10Pin Plug: Amazon.com: Industrial & Scientific
4Pin RIGHT Angle GREEN Color MALE & FEMALE Screws Terminal Block 4 Pin 5.08mm Pitch Male Female Plug-In L Type Plug & Socket For Electronics Cables Connectors - Udvabony.com - Electronics, Sensors,