DX652, KT666 Genuine Dell PR12S Burner Docking Station Slice Multimedia Base With DVD/RW Optical Drive Player For Dell Latitude XT Series Tablet PC 2 types of Power Connectors, 1x Headphone Audio Connector, 1x Firewire Type B (mini connector) 4x USB 2.0 Ports, 1x Ethernet Port, 1x Serial Port, DVI and VGA Video Connectors DVDRW Optical Drive Included, Use with power adapter PA-12 or PA-2 (NOT Included) Part Numbers: DX652, KT666, Model Number: PR12S