This 3 port USB hub is the ideal companion for laptop or desktop computer. Ideal USB expansion for portable use on the road or at home. Perfect for connecting USB 1.1 or 2.0 peripherals such as USB mice, USB Portable Hard Drives, USB CD-R/RW or DVD-ROM drives and USB 1.1 hubs. Allows simultaneous operation of up to three separate devices all attached to a single USB port. Traffic Light design, LED color does not affect its functionality. Color: Black. Features & Specification. Plug and Play. Supports Windows Vista, Windows XP, 2000, 98, and Mac OS 9.2 and higher.