Griffin Technology PowerMate This is a silver, aluminum-milled USB controller that illuminates with a blue LED when connected. The clear cable has yellowed with age, but the blue LED still lights up when connected. I used it with a Mac, but the manufacturer, Griffin Technology, has discontinued production, and official driver support has also ended. However, driver support seems to be continuing in overseas communities (with links to the Griffin PowerMate's overseas wiki, etc.), so please search and gather information on your own to use it. - Color: Silver - Connection: USB - LED Light: Blue - Cable Type: Clear