The Sparkfun DC Barrel Jack Adapter - Male is a practical tool for connecting a barrel jack connector to bare wires. It features a 5.5x2.1mm, center-positive male barrel jack on one end and screw terminals on the other. This adapter is ideal for linking bare wires to a barrel jack on Arduino or other development boards. It's designed to handle a maximum current of 10A. This adapter is a versatile tool for various projects. Whether you're a hobbyist working on a DIY project or a professional developing a new electronic device, this adapter can provide a simple and reliable solution. It's especially useful when you need to connect power supply wires to devices with barrel jack connectors.One of the key benefits of the Sparkfun DC Barrel Jack Adapter is its ease of use. The screw terminals allow for quick and secure connection of wires without the need for soldering. This feature not only saves time but also ensures a solid connection, reducing the risk of disconnection or short circuits. The adapter's unique property is its 5.5x2.1mm, center-positive male barrel jack. This size is commonly used in many electronic devices, making this adapter highly versatile and compatible with a wide range of equipment. For further details on the adapter's dimensions, you can refer to the dimensional drawing provided by Sparkfun. This will help ensure that the adapter fits perfectly with your project or device.