If you're running out of sockets for your USB peripherals, then you definitely ought to take a look at this hub. The Rosewill RHB-220 is a portable solution to your USB port problems. It allows up to 4 additional USB ports on a computer. Thanks to the compact design, it saves your precious desktop space, and the sleek appearance adds stylish accent to your desk area. It’s extremely portable and easy to move between systems or take on the road. This hub is Plug-n-Play, so you can plug it into any computer without having to worry about configurations. It will also support almost any operating system including Windows and Mac OS. A great inexpensive addition to any computer, the Rosewill RHB-220 is a great way to expand your connectivity. Type: USB Standards: USB 2.0/1.1 Ports: 4 x USB 2.0 Transfer Rate: 1.5/12/480Mbps Operating System Supported: Win 98SE /Me / 2000 / XP / Vista / 7 ; Linux, MAC OS 8.6 or above/OS x. Temperature: Operating: 0°C - 55°C Storage: 0°C - 64°C Humidity: Operating: 10% – 90% Storage: 5% - 95% Features: Backward Compatible with USB 1.1. For bus -powered mode, the USB provide 500mA for all downstream & hub. Plug the A-type connector into the PC host port. Connect USB devices to the Hub downstream 1-4. This USB HUB is a 4-port device used to bridge the USB interfaced peripherals to your desktop or laptop by providing four downstream ports. This device complies with USB Spec. V1.1 and V2.0. It offers you the flexibility of 3 data rates. The 12Mbps (full speed), 1.5Mbps (low-speed) and 480Mbps for high...