SIIG USB 3.0 4 Port Aluminum Hub with 2A Charging Port Powered by 12V/3A Adapter (JU-H40B11-S1) Add 4 more Super Speed USB 3.0 ports to your system Supports ultra-fast data transfer rates of up to 5Gb/s (10 times faster than USB 2.0) and is backwards compatible with USB 2.0 & USB 1.1 devices Works with high-bandwidth USB 3.0 devices, such as external hard disks, high resolution webcams, camcorders, video surveillance cameras, digital video cameras, multi-channel audio and more Dedicated 2A charging USB port for your mobile devices Heat dissipating full aluminum housing Built-in over-current protection to protect the hub and connected devices Equipped with on/off power switch & dedicated LED indicator for each port Included 12V/3A power adapter to provide sufficient power output for all ports