HP VB041AA#ABA 90W Docking Station Compatibility: HP: - EliteBook 8440p Notebook PC - EliteBook 8540p Notebook PC - EliteBook 8540w Mobile Workstation - ProBook 6440b Notebook PC - ProBook 6540b Notebook PC - ProBook 6545b Notebook PC Ports Spec: 4 x USB 2.0 USB 1 x Monitor Stand 1 x Mouse 1 x Parallel 1 x DVI-D Video 1 x RJ-45 Network 1 x Display Port Digital Video 1 x DC In 1 x 15-pin HD-15 VGA 1 x Serial 1 x Keyboard 1 x Audio In 1 x Audio Out Dimension: 2.60 x 10.24 x 6.44 Weight: 3.61 lbs.