Adafruit 3.5mm / 1.1mm to 5.5mm / 2.1mm DC Jack Adapter

This convenient 3.5mm/1.1mm or 5.5mm/2.1mm DC Jack adapter lets you seamlessly connect solar panels to our Solar Lithium Ion/Polymer charger. With a standard 2.1mm inner diameter and 5.5mm outer diameter, it's ideal for various devices requiring a 1.1mm ID (3.5mm OD) DC jack.Effortlessly transform a 3.5mm OD plug into a 5.5mm OD plug receptacle. Simply push the adapter fully into the port and experience the satisfying click that assures a secure connection, enhancing your setup's reliability and flexibility.