The LENOVO PA-1900-72 20V 4.5A 90W Genuine Original AC Power Adapter Charger is a reliable and efficient charger specifically designed for Lenovo laptops. This black adapter has a voltage output of 20V and a current output of 4.5A, providing the necessary power to charge your device quickly and effectively. It is compatible with the PA-1900-72 model and is a genuine original product from Lenovo, ensuring a perfect fit and optimal performance for your laptop. This AC/DC adapter is a unit quantity of 1, making it a convenient and essential accessory for your computer setup.