... to suit almost all laptops, select output voltage to suit Laptop and Please make sure the polarity of tip connection is ... rotary switch 5) Compatible with many manufacturers models, including Averatec, IBM, SONY, DELL, HP, APPLE, NEC, TOSHIBA, COMPAQ, FUJITSU, SAMSUNG, LITEON ... .laptop4) Colour box package(or Blister)" AC/DC adapters for laptop(factory price)