The Lenovo ThinkPad Thunderbolt 3 Dock Gen 2 (DK1841 / Type 40AN) is the flagship of docking solutions for professionals. With Thunderbolt 3 technology, this station offers a data transfer speed of up to 40 Gbps, allowing you to manage intensive workloads and high resolution multi-monitor configurations without any slowdown. The product is in Grado A , guaranteeing excellent aesthetic and functional conditions, equal to the new. This model is ideal for those who need to simultaneously connect 4K monitors, ultra-fast USB peripherals and Gigabit wired network through a single cable. Compatibility is extended to all notebooks with Thunderbolt 3 or USB-C port, including Windows systems and MacBook models. NOTE: The product is provided WITHOUT ALIMENTER . It is instead INCLUDE the USB-C / Thunderbolt cable necessary for connection between the dock and the computer. For proper operation and to recharge your laptop via the dock, we recommend using a 135W power supply (Slim Tip rectangular connector). Main technical specifications Brand: Lenovo Model: ThinkPad Thunderbolt 3 Dock Gen 2 (DK1841 / Type 40AN) Part Number: 03X7538 / SD20M70247 External Grade: Grade A (Excellent conditions) Host interface: Thunderbolt 3 / USB-C Video outputs: 2x DisplayPort 1.4, 2x HDMI 2.0 (Support up to 3 external monitors) Max resolution: Support 4K @ 60Hz Docking Station + USB-C/Thunderbolt Cable Compatibility: ThinkPad X1 Yoga 2a gen eration (machine types: 20JD, 20JE, 20JF, 20JG); ThinkPad X1 Yoga 3rd generation (machine types: 20LD, 20LE); ThinkPad T570 (machine types: 20H9, 20HA, 20JW, 20JX); ThinkPad P51s (machine types: 20HB, 20HC, 20JY, 20K0); ThinkPad T580 (type of machine: 20L9, 20LA); ThinkPad P52s (type of machine: 20LB, 20LC).