Certain Lenovo, Dell, Microsoft and HP docking stations are no longer available, this is why i-tec has released similar models of these docking stations. Below you can see the Lenovo, Dell, Microsoft and HP models. If you click on the name of one of these models, you can see the i-tec models that are similar to the that model. In the comparison we indicate which one is most similar to the old Lenovo, Dell, Microsoft or HP model. 

ThinkPad USB-C Dock Gen 2 ThinkPad Hybrid USB-C/USB-A Dock ThinkPad USB 3.0 Pro Dock ThinkPad Thunderbolt 3 Dock Gen 2 ThinkPad USB-C Dock	Microsoft Surface Dock PD9-00004 Microsoft Surface Dock PD9-00011 Microsoft Surface Dock Microsoft Surface Dock 2
HP USB-C Universal docking station HP USB-C Mini docking station HP Spectre USB-C Travel docking station HP USB-C G4 Docking station HP USB-C/A G2 Universal docking station HP Thunderbolt 120 W G2 Docking station HP USB-C G5 Docking station	Dell D3100 Dell D6000 Dell WD15 Dell TB16 Dell WD19 Dell WD19DC Dell WD19TB