The Rocstor premium 90W AC Universal Laptop Charger is defined by its quality and durability. This versatile laptop charger is the best solution for users who require a second adapter or a replacement adapter for their laptop. Rocstor's 90W Universal Charger features an interchangeable tip system, which is a perfect solution for organizations with multiple different laptops. It provides compatibility between many major laptop brands such as Acer®, ASUS®, Compaq®, Dell®, Fujitsu®, Gateway®, HP®, IBM®, Lenovo®, Toshiba®. Another feature of this premium charger is the built-in power supply protection which safeguards your laptop from over voltage, high current and temperature. Use the convenient Rocstor pouch to securely store the excess charging tips. Buy with confidence, Rocstor 90W Universal Laptop Charger is backed by 2-Year Limited Warranty.