Desktop convenience with full port replication capability in a space saving designFeatures- Conveniently charges the notebook while it is in the docking station- Easy docking system provides port replication and cable management, plus expandability through an integrated SATA upgrade bay- all in one product- Four USB 3.0 ports; Two USB 2.0 ports; Support for DisplayPort 1.2- Optional integrated HP Docking Station Cable Lock for securing the dock and notebook with one lock- The integrated upgrade bay lets you use a hard drive or optical drive for additional storage while docked.