Flat USB 3.1 Gen 2 cable connects a smartphone or other USB-C device to the USB-C port on your computer, charger or power bank. This USB-C cable (M/M) connects, for instance, a Windows laptop to a docking station, your smartphone to a wall charger, or an external hard drive to a MacBook Pro computer or tablet. The cable is compatible with any device with a USB-C or Thunderbolt 3 port.