... supply for most brands of laptops. It also comes with a USB port which makes it very convenient to charge mobile equipment such ... *29mmwith 8 Interchangable tips(This adapter is ideal for travel and is designed to support most HP, Compaq, Dell, Toshiba, IBM ... , Lenovo, Sony, Panasonic, Acer, Asus, Gateway and Fujitsu laptops. Easily power or charge a laptop.)With nectral packing as below: