4287

    3.5mm / 1.1mm to 5.5mm / 2.1mm DC Jack Adapter PRODUCT ID: 4287 This convenient 3.5mm/1.1mm or 5.5mm/2.1mm DC Jack adapter lets you plug one of our solar panels into our optimized Solar Lithium Ion/Polymer charger! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1mm ID (3.5 OD) DC jack! Push the adapter in all the way, and you'll feel a satisfying click to know it's seated.   https://www.adafruit.com/product/4287/7‐16‐19