Ships from Hong Kong. It offers an ideal way to connect on the road, and virtually anywhere you need fast, handy access to your USB devices. Especially great for notebooks which come with only a few ports in an era when you need to attach many USB devices at once, such as a printer, card reader, cell phone, iPod, thumb drive, mouse, keyboard, or an external hard drive. Product size approximate: 10.5x2.5 cm Supports USB 2.0 transfer rates up to 480 Mbps. Backwards compatible with 1.1 devices and hosts Convenient and Useful 4 Ports (output); 1 Port (input) Compatible with Win8/Win7/VISTA/XP/Mac 10x and above