Peripherals forum

General discussion


by colliermariano / May 10, 2006 4:09 PM PDT

I NEED to upgrade my little laptop USB 4-port hub to a 7-port hub. I've noticed there are hubs that are "powered". What are the advantages to getting a powered hub vs. a non-powered hub?

The ports on my laptop are all USB 2.0, but unfortunately, there are only 3 ports. If it makes any difference, I'm on a PC with Windows XP Home SP2 with an AMD Mobile Sempron 2800 processor.

The peripherals to be connected include: printer, flatbed scanner, ipod, PDA, card reader, laptop cooler, and a mouse.

Any advice would be very much appreciated!

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It's a power issue. 500 mA to be exact.
by R. Proffitt Forum moderator / May 10, 2006 11:20 PM PDT

The common unpowered hub (a misnomer?) does use the 500 mA given to it on it's host connection. If the devices that you plug into the hub (4 or 7 ports will not matter) exceed this supply then you need a powered hub.

Since powered hubs are cheep on or if I was getting a 7 port hub I'd get the powered one.


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USB Power issue
by ezeze5000 / May 18, 2006 8:50 PM PDT

I agree with R. Proffit
It is a power issue with USB ports.

Just to be on the safe side always use a powered hub.

I have several PC's on a local network that all have lots of USB devices hooked up to them, so I have run into this problem before.

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powered hub
by Corky50 / May 25, 2006 9:40 PM PDT
In reply to: USB Power issue

ran across a 7 port hub that was the review and it need 2 ports to for the connection...the other to access power. i would read every review of every one you are looking to buy...i found the tiger direct and reviews helpful...and that saved me time and trouble (i hope) purchased 7 port hub for for $21 from ...primarily because of reviews and price...i have a 4 port that is being turtle beach audio advantage...print flash drive occasionally and we are kidding ourselves to think that all items will be released with anything other than usb connections.

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