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General discussion

Is it wise to choose usb 3.0 hub with the idea of..?

Dec 5, 2013 11:51AM PST

I am currently using a Toshiba Satellite L535 laptop that comes with built in USB 2.0 ports. From my understanding, a USB 2.0 port can provide a maximum of 2.5W Power Output (5V x 500mA) and a USB 3.0 port can provide a maximum of 4.5W Power Output (5V x 900mA). Please tell me if I have a wrong cognition.

I am thinking of purchasing an external USB 3.0 hub and connect to my existing USB 2.0 port on my laptop. But after connecting the hub to my current USB 2.0 port, I wonder if the ports on the hub perform ideally as an USB 3.0 port by providing a maximum of 4.5W Power Output. I chose a used brand as a keyword to search online. I happened to look this 4 ports one first :


<span id="INSERTION_MARKER">http://www.amazon.com/gp/product/B00EHDJZHK
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<div><div>But yesterday I recalled the annoyance of bringing two much gadget when going outside for business.I am thinking of ..If I prefer the gadget with more ports, is there any limit for the number? Or the less the better?


Please advise as you wish.
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Discussion is locked

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Basically the gadget will work rightly...
Dec 10, 2013 11:36AM PST

If you try to use the one you post above, I believe you can make it work rightly except the transfer speed may not achieve the ideal value as the usb 3.0 always does. As I know, your Toshiba laptop has no usb 3.0 interfaces so as to limit the usb speed to 2.0 . If you did not care too much about this, go ahead to buy it. It will serve your job at least as the page describes.

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Not that practical
Dec 11, 2013 12:27AM PST

Plain and simple, your USB 3.0 at the hub won't provide 3.0 speeds as it still has to be connected to an USB 2.0 port, it nullifies it, remains at 2.0. Next, if you want the power level, the USB 3.0 because its generated at the hub itself will provide that power if in fact the the hub is AC powered when attached to USB 3.0 ports. However, if all this relies on the USB port connection at laptop, then NO. IMHO, just don't do this you won't really benefit much.

tada -----Willy Happy

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what did you want to express when saying about the power..
Dec 11, 2013 10:01AM PST
Grin I am sorry I didn't figure out the middle part saying about the power supply. Could you put it more clearly?
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Hub itself
Dec 12, 2013 10:49PM PST

The hub if connected to an AC outlet will supply that device(hub) at its output level to USB 3.0 ports. The hub is doing this as its based on USB 3.0 requirements. If the hub is connected solely to a PC USB 2.0 port drawing power from it, then only USB 2.0 levels will ever be present. In either case the USB signal if from a USB 2.0 source will remain at USB 2.0, even if connected through a USB 3.0 port. The only way to get true USB 3.0 is to have actual PC supplied build-in 3.0 ports, since this is a laptop you can't add one if it didn't come with it even with the device we're posting about.

tada -----Willy Happy