19.5V 4.62A 90W (!!!make sure the plug is 5.0mm inside and 7.4mm outside) For Dell Inspiron, Dell Inspiron XPS, Dell Latitude, Dell Precision, Dell Studio Input: 100-240V ~2.0A, 50/60Hz, Output: 19.5V~4.62A, 90W.Connector plug Tip Diameter: 7.4x5.0mm. Excellence Features: Easy to Replace your old or worn out Power Adapter with the new one and ensures consistent power and reliable proven performance for your devices. 100% Brand New from Manufacturer. All products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety.