The Rocstor Premium USB 2.0 USB-C to USB-Micro B cable is an ideal cable solution for connecting a external hard drive, smartphone, tablet, or other device that utilize a USB-Micro B port to a host computer, tablet or other device that has a USB Type-C port for USB 3.0 port. This Rocstor USB-C cable is compatible with Thunderbolt™ 3 ports. You are able to charge and sync your Micro-USB mobile devices with newer computers with USB-C ports at data transfer rates of up to 480 Mbps. Use this cable worry free, backed by Rocstor Lifetime Limited Warranty.