Feature:1. Stable performance, low power consumption, no noise, USB2.0 interface balanced transmission, safe and stable2. Stable charging, support for charging connected devices, charging efficiency is higher than ordinary USB HUB3. Small and portable, designed for desktop computers, notebooks, ultrabooks and tablets4. Safe and reliable, unique voltage and current overload protection, effective protection of HUB and connected equipment5. Up to seven independent devices can be operated at the same time, supporting for Windows Vista/ Windows XP/ Me/ 2000/ 98 ect.Specification:Item Type: USB Seven-Port HubMaterial: ABSTransmission Rate: 480 MbpsStandard: USB2.0Port: 7 USB PortsOutput Current: 400mAAdapter Interface: 5.5 mmSystem Support: Not Applicable for OS XOutput DC 5V---1A.Package List:1 x USB Seven‑Port Hub1 x Power Cord1 x Bracket1 x USB Cable