This Thunderbolt 3 PCIe expansion chassis lets you add an external PCIe x16 slot to your laptop or desktop computer, through an external Thunderbolt 3 connection. Expand the Capabilities of Your Thunderbolt 3 Computer This Thunderbolt 3 PCIe enclosure makes it easy to expand your system with the capabilities you need to work at peak productivity. You can add many types of PCIe cards or video capture cards. And, with the speed and bandwidth support of Thunderbolt 3 and PCIe 3.0, you can enjoy many of the same port additions you would from the PCIe expansion slots of a desktop system. Extend Your Workstation This external PCIe expansion box features a dedicated DisplayPort output that lets you add an additional display to your laptop or desktop computer. The PCIe enclosure features a second Thunderbolt 3 port, that you can use to connect a secondary display. With multiple extended displays, you can work more efficiently by multitasking faster, and avoid the hassle of continually repositioning several open programs. Increase Productivity At up to 40Gbps this Thunderbolt 3 expansion chassis gives you the throughput to add displays to your laptop, access files quickly, and work without disruptions. It’s easy to access and edit large uncompressed files such as videos and images on the fly, making it ideal for dynamic on-site production. This external Thunderbolt 3 PCIe expansion chassis is backed by 2-year warranty and free lifetime technical support. OS compatibility: Windows 7, 8, 8.1, 10; macOS 10.12 - 10.15, Cable Length: 19.7 in , Material: Aluminum and Steel.