Lenovo ThinkPad OneLink Pro Dock With AC Adapter (4X10E52935) In The Factory Sealed Lenovo USA Retail Packaging Lenovo 4X10E52935 Retail Packaged and Lenovo Factory Sealed USA Product. OneLink delivers data, driver-free dual video, and power through a single convenient connector. Unlike USB docks the Onelink Pro Dock delivers video with no compression, no drivers and no impact on image quality and notebook performance. Power button on dock mirrors system power button. Front Panel Offers 2x USB 3.0 (One with Always-On Mobile Device Charging). Stereo/Mic Combo Audio Port. Rear Panel offers 2x USB 2.0, 2x USB 3.0 , 2560x1600. DVI-I with maximum 1920x1200 resolution and DVI to VGA adapter included in the box. Gigabit Ethernet (10/1000) with Boot over LAN support on selected systems. This item is Compatible with Lenovo B50-70, B50-80, E431, E440, E450, E455, E460, E465, E531, E540, E550, E550c ,E555, E560, E565, S1 Yoga, S431, S440, S531, S540 ThinkPad Yoga (S Series), ThinkPad S1, Yoga 12, ThinkPad S3, Yoga 14, ThinkPad S5 ,Yoga 15 , X1 Carbon (2nd Gen) ,X1 Carbon (3rd Gen).