This high-quality 90W universal PC notebook adapter with switchable voltage (15-17V or 18-21V) meets CEC (California Energy Commission) & ENERGY STAR LEVEL IV standards, (Power Saving 85%). (NB S90 is listed on ENERGY STAR External Power Supplies ACDC Product List as FSP090-11UAA1). It is ideal for value replacement or as a second unit of reliable power source with full compatibility to your wide range of notebook PCs. The NB S90 features compact design, high-impact durability, worldwide safety, and reliability that are either meets or exceed the original manufacturer"s power specifications. For maximum compatibility and versatility, the NB S90 comes with NINE (9) interchangeable I-Point power tip connectors for use with DELL, HP, SONY, IBM, LENOVO, ACER, ASUS, COMPAQ, GATEWAY, HITACHI, TOSHIBA, VIEWSONIC, PANASONIC, FUJITSU, SAMSUNG, NEC, SHARP, LG and more PC notebook models. For home, office or on the road, the NB S90 is designed for such multi-purpose, cross-model use, including soft case travel bag, power tip holder. Power-Up with confidence, all models come with a standard FSP Quality Assurance Program that provides a direct service guaranteed quality and performance for a period of 3-Year. RoHS, Lead-Free, Green Product (G.P) global environmental friendly status.