The Lenovo ThinkPad Pro Dock 90W 40A10090US is a factory-sealed docking station designed for Lenovo laptops, specifically the ThinkPad, T440, T540, and X240 models. It features various ports including DisplayPort, DVI, and USB 3.0, making it compatible with a 14-inch laptop. Made of rigid plastic and utilizing passive cooling, this docking station offers a convenient and efficient way to expand your laptop's capabilities. With a manufacturer warranty of 1 month and a sleek black design, this Lenovo ThinkPad Pro Dock is a reliable and high-quality accessory for your workstation.