This Auto DC Cig lighter Power Regulated Adapter provides you with Mobile energy for notebook computers. This high power DC adapter is designed to power most popular brand notebook computers while traveling in a car.The adapter features overload and short circuit protection to protect it from damage. With a wide range of 15V to 24V and 8 of the most common plugs, this adapter works with almost all laptops with a round barrel type power connector including Sony, Dell, HP Compaq, Acer and IBM laptops with the pin in the middle of the barrel. Key Features: · Simply connect the USB cable into your computer, and your MIDI interface connection is completed.. · Hot-swappable,you can connect and disconnect whenever you want, even while the computer is turned on. · Draw power from the computer's USB port, no AC adapter needed. · 3 activity indicators for each midi port:Power On-Red, Play-Green, Record-Blue. · 1-in/1-out 5-pin male midi interface. · 16 midi input/16 midi out channels. · Support windows XP. · Cable length: 2 m... Package Contents: · USB MIDI Cablex 1