HP xb4 Notebook Media Docking Station Wide variety of ports (6 USB 2.0 Ports, RJ-45 (network) jack, Microphone (audio-in) Jack, Headphone and connectors provide maximum versatility. Integrated HP Media Drive storage bay provides a clutter-free backup option. Maximize your mobile convenience: Expand your world with one easy connection to your notebook Adjust your notebook to a viewing height that is just right for you. Experience room-filling sound with the powerful integrated Altec Lansing 2.1 speaker system. Adjust your notebook to a viewing height that is just right for you. Maximize your mobile convenience: Expand your world with one easy connection to your notebook Experience room-filling sound with the powerful integrated Altec Lansing 2.1 speaker system. Integrated HP Media Drive storage bay provides a clutter-free backup option. Wide variety of ports (6 USB 2.0 Ports, RJ-45 (network) jack, Microphone (audio-in) Jack, Headphone and connectors provide maximum versatility.