LEDGlow's USB Extender Kit allows you to add up to 7 additional tubes to your Advanced 3 Million Color Underbody Kit. This extender kit includes (1) USB hub and (1) 11' USB linking cable. This extended USB hub helps you to fully maximize the brightness of your underbody kit by being able to install additional tubes. Enjoy the experience of comprehensive and powerful LED lighting below your car or truck, further enhanced by additional LED strips using this USB extender hub. LEDGlow stands by every one of its products with a one-year limited warranty and free lifetime tech support.