NOTICE:1. Target Display Mode is no longer available in all iMac released in year 2017 and beyond. 2. Due to the limit of data transmission speed, this cable could only support up to 4K resolution.3.Since this Cable is at a rate of 20Gbps, it does not support simultaneous connection of two 4K monitors after TB3 DOCK is connected. [TB networking]-The cable gives you an easy way to bridge multiple TB3 enabled laptops for peer-to-peer 10GbE networking. It’s perfect for setting up small workgroups and sharing peripherals such as printers and storage. You can also connect two TB3 laptops together for PC migrations. [Versatile power delivery]-This TB3 cable delivers up to 100W of power for charging a laptop or powering a display, and 15W for bus-powered devices such as a hard drive enclosure. [Full 4K video]-The cable supports full 4K 60Hz video and DisplayPort 1.2, and is compatible with existing DisplayPort displays. It's perfect for connecting your docking station or laptop to a monitor with astonishing resolution, contrast, and color depth for amazing detail. [USB-C compatible]-The USB4 cable is fully compatible with all of your USB 3.1 Gen 2 devices and can be used for charging and syncing your mobile devices. You can also connect and power USB-C laptops, such as your MacBook or Chromebook, and USB-C peripherals, such as your portable hard drive and docking station. [Faster data transfers when connected to TB3 devices]-This cable supports data transfer rates of 20Gbps when connected to a TB3 device, so you can transfer photo and video files at twice the speed of a USB 3.1 (10Gbps) cable. For example, you can transfer a 4K movie in less than a minute. When connected to a USB 3.1 device, the cable supports data transfer rates of 10Gbps.