This is a high - quality DC power jack and connector. It's a popular barrel - type design, perfect for DC wall supplies. The jack has a 5.5mm diameter, and the center pole is 2.1mm in diameter. Check out the datasheet for more details.

Using this DC power jack and connector is easy. First, make sure your DC wall supply is turned off. Then, carefully plug the connector into the wall supply and the other end into your device. When you're done, turn off the device and unplug the connector. Remember, don't force the connector into the jack if it doesn't fit smoothly as it may damage the parts. To keep it in good condition, clean it regularly with a dry cloth to remove dust. Avoid exposing it to water or extreme temperatures, as this can affect its performance.