The ThinkPad Advanced Dock offers full connectivity and desktop expansion for users of next generation ThinkPad systems. It is ideal for notebook users who use high-end graphics or multiple monitors, work with digital media or require a second optical or hard drive.¤¤PRODUCT FEATURES:¤¤Top-left corner alignment for easy system attachment;¤¤Step-by-step LEDs and convenient buttons for easy system ejection;¤¤Ultra bay Enhanced for device expansion;¤¤One half-size PCI Express card slot;¤¤6-in-1 media card reader;¤¤Standard device ports;¤¤Communication ports - Gigabit Ethernet (RJ-45) and modem (RJ-11);¤¤Integrated key lock and security lock slot to secure both the ThinkPad notebook and the Advanced Dock;¤¤Integrated power;¤¤Compatible with next generation ThinkPad Z, T and R Series notebooks.