Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Can use this as an extension cable to charge a smart phone?
Document: I had had no issues with this cable. I use to it charge my phone/transfer data primarily, but I did test it with a 4 port USB hub as well.
works perfect for my game controller and my keyboard. Does not charge my tablet or phone though, but I didnt buy it for that reason so no big deal.
It is in the description, I missed it. So I wrote this incase others will see it and know it does not work with webcams.It does work with webcams IF you have a powered usb hub.Other than that - it will charge my phone or provide power for other devices.Recommend Tripp Lite - they work on all my devices and webcams.enjoy-
I got this item so I could charge my phone from a long distance if necessary and when I would plug it in my phone would say charging not supported with this accessory. But on bright side it works wonders for being able to put my printer on the other side of the room from the computer.
Works great with Logitech Jabra BSP420 conference phone and speakerphone! I would buy this again for sure. We use it in our conference room.
A well designed and durable cable that provide an excellent transfer interface between my computer system and Smart board set-up.
I ordered this to extend the cable for my iphone 5 and it does not get enough power from the wall to charge any of my apple products. very dissapointed
I bought one of these a few months ago, and it works great for data transfer, BUT it will not carry power over this ridiculous amount of distance. I have it plugged into a POWERED usb hub to power my keyboard, mouse, and phone charger/sync cable.
You'd be surprised how useful a 32 foot USB extension cable is! I personally use it to connect a 4-port USB hub to a Home Server in my closet.
This cable is well built. The connectors are solid and fit perfectly. It seems well shielded. I use it as an extension for my Brother printer. It works perfectly and there is no noticeable reduction in speed.
Answer: Sure. It can power my webcam, so it could send power to a smart phone for charging.If I recall correctly, it has a built-in repeater, which will take a little power, but that shouldn't be an issue unless there's a problem with the USB port where you are plugging this in to charge the phone.