This cable does not support native DisplayPort 1.2. You cannot connect your laptop directly to a DisplayPort monitor using this Thunderbolt 3 cable.
When using this cable with a USB-C device, the cable will support USB 2.0 data transfer speeds of up to 480 Mbit/s. This cable is not compatible with USB 3.0 (5Gbps) or USB 3.1 (10Gbps) USB Type-C devices such as external drives, docking stations, etc.