Apple is now selling its own Thunderbolt 3 USB-C cable.
This 0.8-meter cable supports Thunderbolt 3 data transfer up to 40 Gbps, USB 3.1 Gen 2 data transfer up to 10 Gbps, DisplayPort video output (HBR3), and charging up to 100W. Use this cable to connect a Mac with Thunderbolt 3 (USB-C) to Thunderbolt 3 devices such as docks, hard drives, and displays. You can daisy-chain up to six Thunderbolt 3 devices.
Features: ● Transfer data at up to 40 Gbps ● USB 3.1 Gen 2 data transfer at up to 10 Gbps ● DisplayPort video output (HBR3) ● Connect to Thunderbolt 3– or USB-C–enabled devices and displays ● Up to 100 watts of power delivery ● Etched Thunderbolt logo helps it stand out from other cables ● Daisy-chain up to six Thunderbolt 3 devices
You can purchase the cable for $39 from the link below.