HP
688166-001
is compatible in the following HP Models:
Notebook PC Docking Stations
HP 120W ADVANCED DOCKING STATION - NZ222UT
HP 2012 120W ADVANCED DOCKING STATION - A7E36AA
HP 2012 230W ADVANCED DOCKING STATION - A7E38AA
HP 230W ADVANCED DOCKING STATION - NZ223UT