This TOSHIBA Portege M400-ST9113 Special Offer AC Adapter is 100% compatable with the TO1701 TOSHIBA Portege M400-ST9113 Special Offer 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 Portege M400-ST9113 Special Offer AC Adapter includes a warranty to guarantee that it has no manufacturing defects.