90W 19V 4.74A Universal AC Adaptor with 8tips, used for many brands of Laptops, Ultrabooks and Mini laptops. Plug E (Black) DC Plug Outer - 4.5mm, Diameter Inner - 3.0mm Compatible with HP Smarttouch, Envy 14-17, Pavillion15 Ultrabooks Plug T (Black) DC Plug Outer - 4.8mm, Diameter Inner - 1.7mm Compatible with Asus, HP,Compaq, Gateway, LG & eMachines Laptops Compatible with HP, HP Folio 13, Envy 4, 6 Sleekbook PC Ultrabooks Plug B (Pink) DC Plug Outer - 5.5mm, Diameter Inner - 1.7mm Compatible with Acer, Packard Bell, eMachines & Gateway Laptops Compatible with Acer Ultrabooks Compatible with Acer, Dell & Packard Bell Netbooks Plug L (Blue) DC Plug Outer - 5.5mm, Diameter Inner - 2.5mm Compatible with Acer, HP, Compaq, Asus, Toshiba, IBM, Lenovo, LG, Fujitsu BenQ Laptops Compatible with Toshiba, Fujitsu, MSI & Lenovo Ultrabooks Compatible with Toshiba, Lenovo, MSI, Advent BenQ &LG Netbooks Plug D (White) DC Plug Outer - 5.5mm, Diameter Inner - 3.0mm Compatible with Samsung Laptops Compatible with Samsung Netbooks Plug H (Black) DC Plug Outer - 7.4mm, Diameter Inner - 5.0mm Compatible with HP, Compaq Laptops Compatible with HP Ultrabooks Plug G (Grey) DC Plug Outer - 8.0mm, Diameter Inner - 5.5mm Compatible with Lenovo, IBM Laptops Plug U (Yellow) DC Plug Outer/Diameter Inner - Square Compatible with Lenovo IdeaPad, Thinkpad Laptops Compatible with Lenovo IdeaPad, Thinkpad Ultrabooks