The MediaStation 8x Portable DVD Drive DVSM-PC58U2VB is an affordable, portable DVD writer with a sophisticated LED power indicator. This external DVD writer is the ideal companion for a laptop or Netbook and is a high quality alternative to laptop manufacturers pricey options. The MediaStation 8X Portable DVD Drive includes two integrated USB cables that snap to the chassis for easy mobility. Powered by your laptop USB ports, no AC adapter is necessary. If the power from a single USB port is insufficient, the red LED will glow, indicating additional power is required. In this instance, the convenient USB Y-cable allows you to connect to second USB port to power the unit.