The hp 2013 ultraslim docking station is compatible with a range of hp elitebook series laptops that have a side docking connector (not bottom docking). specifically, it is designed for ultrabook-style elitebooks with the slim docking port.
compatible hp elitebook series:
these include elitebook models from around 2013 to 2019, especially the 800 series:
elitebook 800 series:
hp elitebook 820 g1, g2
hp elitebook 840 g1, g2, g3, g4
hp elitebook 850 g1, g2, g3, g4
other compatible models:
hp probook 640 g1, g2
hp probook 645 g1, g2
hp probook 650 g1, g2
hp probook 655 g1, g2
dock port type:
the hp 2013 ultraslim dock uses a mechanical side docking connector.
this dock includes vga, displayport, usb-a ports, ethernet, and audio jacks.