Specifications: Product Name: USB Hub Model Number: MT102 Features: 1) Four USB downstream A type connection ports 2) USB 2.0 specification compatibility 3) Plug and play and hot-plug with USB devices 4) Provides USB device plug-in and data transmission indicator 5) All downstream connection ports support up to 480Mbps operation 6) Soft-start for slow turn-on feature prevents high inrush currents When initially powering capacitive loads 7) Using this product, if over 500mA device, please use extra power supply (100-240V AC (input)/5V DC/2A (output)