[What We Offer] ikuai Portable 7-port USB hub with Individual Switches, 12V/3A power adapter, 3.3ft USB 3.0 detachable cable, user manual, professional customer service.If there are any product issues during using the 7 port Powered USB hub , we provide 24-hour customer service, Provide maintenance, and return services. Manufacturer info: Shenzhen Rong Sheng Hui Electric Co., Ltd. [Aluminum Housing & Optimal configuration] USB Charging Hub made of high-quality aluminum alloy and high-gloss edge design, Sturdy and durable, fit for office, home and school. The USB 3.0 hub is working both bus-powered and self-powered, and the equipped 36W power adapter allows power-hungry devices such as large-capacity external HDD with more stable data transmission. [Switch Control USB Hub] Each port of the Aluminum USB 3.0 hub splitter has an independent switch with LED indicator, easy to show power status. You can turn on/off the separate USB port without having to unplug the whole hub, more flexible to manage all the devices plugged in. The LED light flashes during data transmission and it is easy to identify each port's working status. [Dedicated Charging Port] The Multi-port Powered USB hub, and three of the USB ports are the fast charging ports, which can quickly charge cellphone, tablets, cameras, and speakers, etc that support fast charging protocol. Powered USB hub automatically detects and delivers the optimal charging current speed of up to 2.4 amps, an excellent choice to save your time and space. (Note: Devices that do not support quick charge protocol can only perform normal charging.). [Aluminum USB Port Hub] ikuai Powered USB 3.0 Hub, extend 4 USB 3.0 data ports for your device, ideal to expand the USB 3.0 port of your PC, laptop, smart TV and gaming host. Data transfer speed rate up to 5Gbps, 10x faster than USB 2.0, compatible with Windows 2003 / XP / Vista / Win 7 / Win 8 / Win 10, Mac OS, Linux 9 and higher.