HP UltraSlim Docking Station 2013 - Docking station - GB - for EliteBook 755 G4, 820 G4; ProBook 640 G4, 64X G3, 650 G4, 65X G3; ZBook 14u G4, 15u G4 - Hunt Office UK
HP EliteBook 820 G3 Docking Station
HP UltraSlim Dock Station for EliteBook 820 G1 G2 G3 G4 850 G1 G2 G3 G4 Laptop | eBay
HP EliteBook 820 G4 i5 7. gen + Docking station
820 Docking Stations
HP 732252-001 Ultraslim Docking Station For UK. - EliteBook 820 G1 D9Y32AA (Compatible Part 732252-001) - (Spare Parts > Docking station Laptop) (Refurbished): Amazon.co.uk: Computers & Accessories