There is no control of the light effects. I can stand rainbow color changing effects, but you're stuck with it here.Amazing Product !!The description doesn't mention it, but the USB hub is optionally powered, you can plug-in a 5VDC adapter (with microUSB plug) to power peripherals that require extra power. I wish it was possible to switch off the lighting and the bungee/cable holder was higher, it would make it more useful, however it's not bad, it's flexible enough and adds to your comfort.Everything is good but the problem is we can't control the light effect. Its very annoying. You can't match up with your desktop setup.this Swiss army knife of an accessory is worth every penny,Not just an rgb bungee, it also acts as an sd card reader with 2 usb ports that are highly responsive for its price range.It is a solid choice.Great little unit, neat, stylish and quite good built quality.El unico detalle es que pense que tenia un puerto C, y no tiene solo viene un adaptador.