The ultra small U222-004-R 4-port USB 2.0 hub is the most versatile and powerful hub on the market. This USB 2.0 hub allows you to connect up to four USB devices to a single USB port on a PC/Mac/laptop. Meets or Exceeds USB 2.0 Specifications for hi-speed data transmission rates up to 480Mbps. Perfect for both the desktop and mobile user. For the mobile user, this full featured hub with built-in cable is pocket size and an ideal solution for the user on the go. All four ports support USB Battery Charging ( BC ) specification v1.2, providing up to 1.5A for fast charging of mobile devices. Includes a 100-240V, 5V, 2A power adapter. This USB 2.0 device is backwards compatible so that it will function with both USB 2.0 devices as well as USB 1.1 peripherals. Comes in a clamshell retail package.