Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Does this work if plugged directly into power (to charge phones) or must it be plugged into pc to recognize?
Document: This USB 3.0 hub is nice and compact (although the connector is rather large), and it installed almost instantly when plugged into my Ultrabook. Keep in mind that since this is not a powered hub, most devices will not charge when plugged into it. The data transfer speed of an external USB 3.0 hard drive was the same whether connected directly to my computer or through the hub.
4-Port Hub---------I have a 2013 MacBook Air 11" (with 2 USB 3.0 ports), and when traveling with my wife we have 4 phones we have to charge (iPhone 5, iPhone 4S, iPhone 4 and Galaxy Nexus).Whether the notebook is plugged in or not, I can plug this hub in, then attach USB cables and charge all 4 phones, great - it saves me from carrying 4 adapters around!
I bought this to allow hookup of ; a Lan to usb3 adapter, a portable 1g hardrive, a blueray read writer, and a flashdisk reader, all plugged into 1 usb3 port on my windows 8 tablet and all powered by that usb3 port. It works great but requires quit a bit of power when it is all plugged in so it must be plugged into AC. If only 1 or 2 devices are run at a time the tablet will run on the battery for quite some time.
I plugged in several of my USB 3.0 external hard drives, and NONE of them worked. The power was running, but they never showed up on my desktop (they way they do when I plug them into the USB drive directly. I'm sending it back.
I use it with an unpowered external hard drive and use the other ports for lower powered devices such as cameras and mice and the speed I get is as high as if I plugged things directly into a built in port. That frees up ports for other things, but there is enough power to handle several thumb drives. Likewise, it will be no problem with any powered devices and that covers many external hard drives.
Good device. Got this for my Surface Pro so I could replicate the USB port without having to drag around a power adapter for the hub. So far, I've plugged in my phone to charge/sync, run an Ethernet USB adapter as well as a thumb drive at the same time with no issues...the phone charging was slow, but it's always slow on the PC bus compared to being plugged into the wall. Would totally recommend this thing.
It allows me to charge / sync my iPhone from the hub. In the past I had to sync my phone directly from my computer
The good is it does work as a USB hub. The bad is from my experience it will only hub other 2.0 USB devices. My experience is I plugged it into my USB 3.0 port on my Microsoft Surface Pro 2. I was able to power my mobile monitor with no problems, but once I plugged in a USB 3.0 hard drive my monitor went blank. It did power my USB hard drive, but I think it connected using USB 2.0 compatibility.
I'm very satisfied with this purchase. It works flawlessly with my Surface Pro 2 and Windows 8.1.I didn't install any drivers. The three ports work well and the Ethernet adapter works great too.It didn't power one of my external USB drives which works fine if plugged into the SP2 USB 3.0 port. But, it is an older drive so I can't really fault the Hub. The Hub works fine for USB thumb drives and my XBox controller.
Metal part of USB plug is too resilient (must be firm). This makes the plug moving itself when plugged into my macbook. I used it for external hard drive connection but this product makes frequent disconnection and finally I lost my data.
Answer: Hi J. I've tested this with an iPhone charger/5S and it does not transfer bus power thru the hub. The USB handshake can not accommodate multiple pieces so i suspect this will be the case with any USB powered android as well.