Purchased new. Then switched to a different model and size. Used infrequently, comes with USB-C cord. Description from Amazon: The Oura Ring Gen3 Charger is the only way to charge your Oura Ring. It’s fast, convenient, and easy. Your Oura Ring can take 20-80 minutes to fully charge on the Oura Charger, depending on its current battery level. It comes with a USB-A to USB-C Oura Ring Cable cord, intended to be supplied by an external 5Vdc supply that complies with IEC 62368-1 standard. Questions? Leave a comment below!