This TOSHIBA T4500, T4500C, T4600, T4600C AC Adapter is 100% compatable with the PA2411U TOSHIBA T4500, T4500C, T4600, T4600C AC Adapter. Our batteries and accessories are made with high quality parts and are guaranteed to meet or exceed the original equipment manufacturers specifications at a reduced price. All batteries are tested for 100% quality control assurance. This TOSHIBA T4500, T4500C, T4600, T4600C AC Adapter includes a warranty to guarantee that it has no manufacturing defects.