Will it power multiple devices from a single USB port? (as said in description) OR Use 2 USB ports to power a single device?
851586
No, it cannot power multiple devices from a single USB port. It is meant for providing the required power to a single USB 3 device, when the power source (e.g. laptop, desktop etc) is incapable of providing the required power from a single USB port.
851587
It uses two USB ports to power micro USB devices like portable external hard disks or external DVD burners, so you have separate USB for data and power
851588
Yo uso 2 dispositivos con este cable! Es espectacular! Te lo recomiendo! Yo uso un disco duro externo y un ventilador para la notebook!. I use 2 devices with this cable! It is spectacular! I recommend it! I use an external hard drive and a fan for notebook!
2031087
No. Just two USB ports. One for power & data and another just for additional power.
1897260
Sorry I really don't know. USB devices like this can be plugged into many ports, but I don't know about chaining them.
1712177
Yes. You can charge 2 USB devices and 3 electrical devices at the same time.
2211421
The two USB male ends are part of the same cord so I imaginethat the only function this serves is to increase power. It draws power from multiple ports because traditionally USB ports don't supply large amounts of power to devices, but many newer computers and motherboard USB ports have a larger power capacity. Only using one USB, most likely, will not be a problem, assuming the HDD or SSD isn't huge and doesn't consume outrageous amounts of power.
1970213
Yes, it does, but you have to run it through a USB hub to switch more than one device at a time. It just has one USB line in and one USB line out, and you can connect two or more devices to the USB hub and run the output of the hub through the switch.
1629197
The USB ports have a combined voltage of 2.5 amps. So with one connected you get all 2.5. With two connected you get around 1.5 amps each. It will charge but not as quickly as with just one connected. The AC Outlet works independently. So I currently have an iphone, and an ipad connected to the usb ports and a bluetooth speaker recharging on the AC outlet. All 3 are charging, albeit slower then if fewer devices were connected. Short answer is YES.
1123958
I think, if your USB port has enough power, it will work with one plug. There are versions available on Amazon with only one plug and they do work.
1647310
A splitter will not allow the device to have enough power. The device will work on one port but at reduced power. Davids' suggestion is your solution.
1213489
One USB port but some functions are limited by power of the device. Ie I could use on my MacBook, but couldn't format. Had to format from my iMac.
1213491
I use mine with just 1 USB port for power, but apparently it depends on the drive you are using inside the enclosure. I use it for the 'old' drive in a laptop. I upgraded the internal drive and took out the 250Gb drive and put it in this case as a back-up drive.
401447
All multiport USB chargers will split the power between the ports but this one is 3A. One port will get 2A and the second 1A so it is sufficient to power all new devices that require 2A charge (like iPad and large screen smart phones) and use 1A port to power second device without compromising on time. Just make sure to use original device cable.
2110247
It is for connecting two devices to one usb port, in and of itself it provides no power whatsoever, nor does it in anyway provide or enable whatever software is required to make devices work. Clear? It is excellent for connecting two non-powered items such as a key board and mouse. In addition there is no switching mechanism, thus its function is to make available two usb ports using only one on the computer.
1647311
I've heard the reason for the two USB's is in case you have a computer that doesn't provide enough power on just one USB, then you have to use two. It seems to work fine with just one USB with my Compaq (HP) 6730s laptop. I've also tried in on my HP desktop and it also works with just one USB. My thoughts are, try it with one and if it works, great! If not, then you'll have to use two.
1401231
Umm, it's a USB hub? It let's you plug in more than one usb device. Did you not read the description?
335686
The unit only outputs 5 volts. If you add more devices to each USB port, it will split that 5 volts.
1384965
I ordered one and it has two USB ports, HOWEVER, I have been unable to charge two devices simultaneously (I tried with iPhone and iPad and was unsuccessful).