The Media Carousel Plus organizes 150 discs and can automatically serve up any in seconds! Use the keypad to retrieve discs or use the USB connection and software to build a searchable database on your computer... one click and a disc is called up! A built-in single port USB hub in the Media Carousel Plus lets you connect another Carousel or other USB accessory, such as a mouse or scanner, without an additional hub. Requires Windows 98SE/Me/2000/XP/Vista.MAC OS Drivers no longer available - as of Summer 2008.