A:Answer Yes, you need a thunderbolt (USB-C) dongle to use USB devices. There are several types available ranging from Apple’s dongle that is about $20 to third party companies who make a combination dock that connects via USB-C, and includes a USB-C pass-through port, two USB 3.0 ports, and an HDMI port with 4K (30Hz) support. With this, you don’t have to carry around multiple adapters. Hope this helps. Good luck.