Question about i-tec C31tripledockpdch

Hello, I hope someone can help me. What is the difference between this docking station and this one: https://www.digitec.ch/de/s1/product/i-tec-dockingstation-usb-cthunderbolt-3-triple-4k-pd-85w-usb-c-dockingstation-17525715?supplier=406802 When I search the manufacturer's number (C31TRIPLEDOCKPDACH) at i-tec, I can't find anything. Whereas the number of this product and the one in the link only differ by an "A". Many thanks in advance.