The Dell Precision Dual USB-C Thunderbolt Dock - TB18DC offers incredibly high power delivery of up to 210W for Precision 7530 and 7730 workstations. Transfer large files at lightning fast speeds of up to 40 Gbps when you connect with Thunderbolt storage devices. A single, long cable allows you to dock and power your laptop flexibly, just about anywhere in your workspace. The dock supports Dell Business Class features which allows for easy manageability.