The TB16 has three digital ports: HDMI, display port, and mini display port. In addition, DVI, Displayport, and HDMI can all be directly converted. Just need the proper ends on the cable. My setup takes advantage of the displayport MST specification so my two displays are chained together.
https://www.dell.com/en-us/shop/del...with-180w-adapter/apd/452-bcnp/pc-accessories