2pcs 9V DC Battery Power Cable Plug Clip barrel jack connector for Arduino DIY

6 ft. cable with 5.5mm x 2.5mm, DC Barrel Power Jack Connector for Video cameras

Power DC Barrel Changer Adapter from 5.5mm 1.1mm Pin Female to 5.5mm 2.1mm Male

0.3/1/2M USB 2.0 A Female Jack Connector 2 Pin DIY 5V Power Charging Wire Cable

Arduino Mega 2560 /Acrylic Box Enclosure Transparent Case for Arduino MEGA2560

Nano V3.0 ATmega328P CH340G 5V 16M Mini-USB Microcontroller Board

5pcs IndusTec 9V I -Type Battery Clip Snap Connector Hard Shell Arduino Pi Power