Feature: 1. Stable performance, low power consumption, no noise, USB2.0 interface balanced transmission, safe and stable 2. Stable charging, support for charging connected devices, charging efficiency is higher than ordinary USB HUB 3. Small and portable, designed for desktop computers, notebooks, ultrabooks and tablets 4. Safe and reliable, unique voltage and current overload protection, effective protection of HUB and connected equipment 5. Up to seven independent devices can be operated at the same time, supporting for Windows Vista/ Windows XP/ Me/ 2000/ 98 ect. How to Use: This product is very simple to use, plug and play, no driver required Specification: Item Type: USB Seven-Port Hub Material: ABS Transmission Rate: 480 Mbps Standard: USB2.0 Port: 7 USB Ports Adapter Voltage: 5V Output Current: 400mA Adapter Interface: 5.5 mm System Support: Not Applicable for OS X Power Adapter Specifications: Input AC 100-240V~50/60Hz Output DC 5V---1A Package List: 1 x USB Seven-Port Hub 1 x Power Cord 1 x Bracket 1 x USB CableUp to seven independent devices can be operated at the same time, supporting for Windows Vista/ Windows XP/ Me/ 2000/ 98 ect. Safe and reliable, unique voltage and current overload protection, effective protection of HUB and connected equipment. Small and portable, designed for desktop computers, notebooks, ultrabooks and tablets. Stable charging, support for charging connected devices, charging efficiency is higher than ordinary USB HUB. Stable performance, low power consumption, no noise, USB2.0 interface balanced transmission, safe and stable.