I-TEC TB3 DUAL DP VIDEO ADAPTER .

Expand your desktop with one or two external Display Port monitors, via the new Thunderbolt 3 connector. The adapter supports 1x 5K resolution up to 5120×2880@60Hz or 2x 4K resolution
4096×2160@60Hz and stereo sound.

The adapter is intended primarily for devices that are equipped with a Thunderbolt 3 interface (MacBook Pro 2016, DELL XPS12, DELL XPS 13, DELL XPS 15, HP Elite X2, EliteBook Folio G1, Spectre x360, Lenovo Thinkpad P50, Lenovo Thinkpad P70 etc.). The connector has many advantages, it is smaller, symmetrical and allows easy connection, because you can rotate the connector either way.

The adapter is an excellent choice for designers, graphic designers, gamers, and other users working with more than one screen simultaneously. Its performance allows you to run the most demanding applications on one or two independent displays. It is ideal for editing 5K / 4K 60Hz video or for other Ultra HD tasks such as CAD drawings or viewing medical images.
Using the “Extend” and “Mirror” modes, you can for example use applications on two monitors (e.g., wide spreadsheets), or you can work on the first screen and search the Internet on the second screen, you can compare several documents simultaneously without constant switching between the open windows, also you can display panoramic images on two screens.
Operation is very simple, just plug the adapter into the Thunderbolt 3 port on your computer, connect it with a display device via Display Port cable and you can start using immediately. When connecting a single monitor through two Display Port cables it supports up to 5K 5120×2880@60Hz, the host graphic card has to support 5K resolution. The adapter is compatible with active HDMI, DVI and VGA adapters, so it is also possible to connect displays and TVs which do not have a Display Port connector. Driver installation is automatic.