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PRODUCT OVERVIEW
Enhance the functionality of your ThinkPad X40 Series notebook by snapping it into the ThinkPad X4 UltraBase. This simple, quick-attach solution is easy to carry and helps to give you an array of expansion capabilities in the office or on the road.<br><br>Features and Benefits:<br>• Easy to carry or pack for mobile use or as a docking solution at home or in your office.<br>• Integrated key-lock and system tray secures your X40 Series notebook in the X4 UltraBase and the slot for an optional cable lock helps provide security for the dock.<br>• Integrated Modular Bay -- supports Ultrabay Slim options including the DVD, CD-RW/DVD-ROM and Multi-Burner Slim Drives as well as the Ultrabay Slim Li-Polymer battery for all day (up to 10.7 hours*)1 battery life on select models when used with the system battery. Or, add an optional second ThinkPad hard drive with the ThinkPad 2nd Hard Drive Adapter for Ultrabay Slim.