Features:Sleek design ideal For Mac Pro， iMac， MacBook Air， MacBook Pro， MacBook， and Mac miniAdds 4 USB 2.0 ports to your computer - Up to 480 Mbps data transfer rateEasy to set up， Plug-n-Play， Hot swappable， Hot pluggableShielded Cable makes a safe and efficient data transfer for maximum performance and longtime usageSystem requirements:Mac OS 9.1 & higherWindows 98SE /ME /2000 /XP /Vista /7/8Linux 2.4 or abovePackage contents1 x USB 2.0 4-port hubPower adapter is not included in this listing!