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!

Discussion is locked
You are posting a reply to: USB Hubs: POWERED vs. NON-POWERED
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: USB Hubs: POWERED vs. NON-POWERED
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
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.


Collapse -
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.

Collapse -
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.

Popular Forums
Computer Help 51,912 discussions
Computer Newbies 10,498 discussions
Laptops 20,411 discussions
Security 30,882 discussions
TVs & Home Theaters 21,253 discussions
Windows 10 1,672 discussions
Phones 16,494 discussions
Windows 7 7,855 discussions
Networking & Wireless 15,504 discussions


Want to see the future of car technology?

Brian Cooley found it for you at CES 2017 in Las Vegas and the North American International Auto Show in Detroit.