High-Speed USB 4-Port Hub with Splitter Cable Review

Average Reviews:

(More customer reviews)At first I thought there was problem with the outside tentacles, but it turns out you just have to move things around if you're using items that draw power Vs transferring data. It slows things down ever so slightly---not enough for me to worry about.

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Hi-Speed 7 Port USB 2.0 Hub +Power AC Adapter for PC Review

Average Reviews:

(More customer reviews)Thought this USB hub was good. Soon after using it for about an hour, the ports started going bad. Not working. Change to another port. It would either not work or quit very quickly. Wasn't worth hassle of sending it back. Would not purchase again. Not this one.

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APC - Hub - 7 x Hi-Speed USB - desktop Review

Average Reviews:

(More customer reviews)The hub works well overall.
The stand is very light and flimsy so any cable pressure will drag
the unit around or topple it. My stand in particular was not level
so I had to bend it a little to prevent it from wobbling.
An external 2.5" portable drive seems to work fine when plugged into
the hub.
However, even though it is a "powered" hub it does not provide enough
power to charge an iPad (to be fair a lot of PC laptops don't either).
An iPhone was also a bit fiddly as far as getting recognized by iTunes
and getting charged - likely because there is borderline enough power
for it.
Expect to have to charge iPads with a recent Mac's built-in USB port
or external power supply, and iPhones with a Mac/PC's built-in USB
port or external power supply.
The main reasons to get this hub over others (powered or unpowered) are
the good number of ports (7), the fact that it does seem to power external
laptop drives well, and the hopefully better quality and longevity over
other brands (I've read some scary reviews about other powered hubs frying
devices that were plugged into them).

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Black New 10 Ports USB HUB 2.0 High Speed with Power Adapter Review

Average Reviews:

(More customer reviews)A 10 port USB hub might be the "Holy Grail" of tools to connect multiple USB devices.
As others have commented, however, the device feels cheaply made.
USB cables do not seat fully.
Most importantly, assess your power/charging needs before purchasing.
Many reviewers comment on the ability/inability of their USB devices to charge while plugged into various USB hubs. Some of this may be traced to the power supply for the hub. My personal experience is that, depending on the USB hub I'm using, if I'm trying to run a USB cooling fan, charge my iPhone and Blackberry at the same time (while other USB devices are attached), I will get an error message stating power is inadequate, or one of my devices simply won't charge.
Almost all (all?) USB hubs are powered by devices whose DC output is 5V. Most manufacturers do no list on their web site how many amps are provided by the power adapter. The amps can vary widely. On this 10 hub port, the output is 5V at .5A. I have other hubs that cover a range, with some having 4 ports at 3.6A.
So, if you may have the need to attach multiple devices at once, without much need for charging or powering the USB device, this 10 port hub may do the trick. If you travel, and are looking for something to connect and/or charge multiple devices at once, (bluetooth earpiece, Blackberry, iPhone, camera, etc....) USB hubs with low amps may mean only 1 device will charge at a time, while others may not even connect. This can be very frustrating.
It is also important to note the iPads will not charge with a random USB hub, nor will they charge connect directly to a computer. A special power adapter is required to charge the iPad. This is an iPad issue, not a USB hub issue.
It would be helpful if other reviewers would comment on the amps provided by the powered USB hubs they review, and if others could verify this observation.
Any other input by someone who knows/understands the power circuitry would be appreciated, as these are observations only by using various hubs in a trial and error fashion. For example, can one take a power adapter with an output of 5V 3.6 A and safely use this with another hub whose original power adapter has a lower amp rating?

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