Thanks for the clarification.
You won’t find modern systems by Dell, HP or Lenovo in the mid to high range that doesn’t have a USB-C or Thunderbolt 3 port. Certainly don’t take my word for it – feel free to peruse their catalogs if you’re interested!
In the case with a USB-C port, the difference will be the use of USB-C Triple Display Docking Station (UD-ULTCDL) in combination with a single USB 3.0 Graphics Adapter. You can find more details our our UD-ULTCDL on its product page: https://plugable.com/products/ud-ultcdl
The one thing to be aware of in terms of USB-C is that not all USB-C ports are created equally. Some only support data transfer and not the required video data (Alt Mode) and Power Delivery for host charging. You’re certainly free to check in with us regarding host USB-C compatibility.
Thanks!