Products trademarked HQRP™ are marketed and sold exclusively by Osprey-Talon. Replacement Heavy-Duty AC Adapter for Toshiba Satellite M500-ST5405 / M500-ST6421 / M500-ST6422 (compatible only with the models that are in the list). AC power cord (length 6 feet/1.8 meters) is included ! Specially for more convenient work.