MediaStation 8x Portable DVD W. USB BUS-POWERED WITH LED POWER INDICATOR. LED power indicator that lets you know if one or two USB cables are required to power the device. Typically only one USB cable is required. However, if the power from one USB drive is not sufficient, the LED will light up to indicate that you will need to connect another power cable to the DVD writer. Includes M-DISC support and is bundled with CyberLink Power2Go for Windows software.