Female DC Power Plug to 2-Pin Screw Terminal

From the shop's description

Female DC Power Plug to 2-Pin Screw Terminal is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5×2.1mm, center-positive female barrel jack. If you have a power supply with a barrel jack and want to plug it into a breadboard, this might be the simple solution. It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.