The LOT 25X Original Lenovo 90W AC Adapter is a high-quality power supply specifically designed for the Lenovo ThinkPad Dock Station. With a voltage of 20V and an output current of 4.5A, this black adapter is compatible with various Lenovo ThinkPad models and is made in China. It is an essential accessory for keeping your laptop charged and ready to use whenever you need it. These reliable adapters come in a lot of 25, ensuring that you have a spare on hand for when you might need it.