ChargeHub Round - 7 Port USB Universal Charging Station - Blue Ability to charge up to 7 USB devices simultaneously with a single power supply. SmartSpeed Technology provides optimal charge for virtually any USB device (based on type and number of connected devices). Single power supply eliminates excess cables and numerous plugs, outlets and power strips to maintain a neat and organized space. Optimum quality, safety and durability - UL/cUL Listed, FCC Certified, RoHS Compliant, and 1 Year Limited Warranty. Soft blue LED indicator light and adjustable underglow effect for ease of use in the dark.