Stable performance low power consumption no noise USB 2.0 interface balanced transmission safe and stableStable charging support for charging connected devices charging efficiency is higher than ordinary USB HUBSmall and portable designed for desktop computers notebooks ultrabooks and tabletsSafe and reliable unique voltage and current overload protection effective protection of HUB and connected equipmentUp to seven independent devices can be operated at the same time supporting for Windows Vista/ Windows XP/ Me/ 2000/ 98 ect.