Box opened but never used. New and authentic 100%. The Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter, model MMEL2ZMA, is a high-quality converter designed for seamless connectivity between Thunderbolt 3 and Thunderbolt 2 devices. Made by Apple, this adapter ensures compatibility and reliability for your computing needs. With a connection split/duplication of 1:1, this unit is ideal for working with USB 2.0 and USB Type C Male connectors, making it a versatile accessory for your computer setup. The sleek design and unit quantity of 1 make it a convenient and efficient solution for your connectivity requirements.