Review on Cordinate 37922 Designer 3-USB Charging Extension Cord with Surge Protection, Brown Braided Fabric Cord, 10 ft, Low-Profile Plug, 3.4A USB Charging Ports for Rapid Charging Efficiency by Chris Wheeler

I bought this primarily to power my computer hardware to offload my computer's USB ports and allow said hardware to run even when not connected to the computer. While it does this perfectly, it renders my SHIELDED theater speakers almost unusable due to the interference they create. For that reason alone I would never buy this product again. However, if you just want to charge your phone and can keep it away from interference-sensitive devices, it's perfect for your needs - it charged my phone about an hour faster than the standard charger that came with it. However, I will notice that the phone got a lot warmer while charging than it ever did when using a standard charger. Phone charger, 4 stars. Other apps, 0 stars due to device interference.