Question about i-rocks IR-4100 4-Port USB Hub

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Not Reading Peripherals - i-rocks IR-4100 4-Port USB Hub

When I plug in my external drive and my clip drive into the i-rocks USB hub, the hub doesn't read / see them. When I plug the peripherals into the computer tower itself, they show up. This is the second time I've had this problem. The first time, I just bought a new hub, and have used this current one for several years. However, it seems that i-rocks hubs simply give up after a few years. I'd like a recommendation on a higher quality brand than i-rocks.

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Re: Not Reading Peripherals - i-rocks IR-4100 4-Port USB...

If your looking for a good quality USB hub, i would go with a Belkin. They do cost more than most other hubs, but from the 8 years i have been at my retail store, they have had the lowest return rate of all that I have sold.

Posted on Aug 27, 2007

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Where can I find a power supply for the Encore ENU-4USB 4-port external mimi USB hub?

The power supply is a 5 VDC, 500 mA (outer negative, inner positive) commonly used for mp3 players, but probably you must cut the mini usb plug and adapt a compatible jack with the hub.

Jan 14, 2011 | Encore ENU-4USB 4-Port External Mini USB...

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I misplaced the power adaptor, and found one the fits in, but don't know if has the coorect powers output.. the power adaptor I have for this I rocks IR 4300 is an eblue mainstay with an output of 5.0...

as per irocks page this is the power info for your device:

Power : Self Power : 5V
Adapter : (input)100~240 VAC , (output)5 VDC

you probably may want to check with someone at radioshack if the adapter you found matches above specs

info on your device can be found here

Dec 26, 2009 | i-rocks IR-4300 4-Port USB Hub

1 Answer

I need software for my 7 port hub i just purchased

No you don't. Just plug it in to a USB 2.0 port on your PC and it should find it all by itself. You make have a problem if you are plugging a USB 2.0 hub into a USB 1.1 port. Also, you may well want to use the external power supply as it may not be able to draw enough power from PC USB port.

Oct 09, 2009 | Dynex 7-Port USB 2.0 Hub

2 Answers

Targus Travel USB 2.0 4-port Hub

sometimes usb hard drives will not work through a usb hub.
if the drive works connected to the laptop but not the hub then that's how you'll have to use it.
it's also possible the laptop cannot power both the hub AND the drive, in whaich case you'll need a powered hub (one you plug in to the mains).

Sep 21, 2009 | Targus PAUH217U 4-Port USB Hub

1 Answer

4 port HUB is connected. My computer doesn't show it. Help! It is all plugged in with USB cable and when I go to MY COMPUTER it doesn't show.

The hubs usually show up in the hardware list and not as a seperate device. Only way to know it is there is to plug a usb device into it.

I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)

A few things to check but assumes USB and Windows for other interfaces / operating systems similar steps may be adapted to suit.

1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability

2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)

3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.

4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.

5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especialy true if you move a HUB to another port

If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further

Sep 05, 2009 | CyberPower CPH420P 4-Port USB Hub

1 Answer

Usb hub unsafely unplugged from notebook. now

do one thing boot ur vista without usb hub then go to device manager remove your usb drivers of the hub disconnect the hub from computer, restart notebook, then connect the hub back when windows boot let vista to install the driver of that hub, after that connect your devices one by one ok let me know what happen? :-)

Aug 21, 2009 | Belkin (F5U237) 7-Port USB Hub

8 Answers

Power supply for Targus 4 hub usb 2

Most USB hubs do not need an external power supply, except when a connected USB device draws more power than the computer/laptop USB port can supply. In this case an external power supply will need to be connected to the USB hub.
Normally this would be a 5 volt power supply, but make sure the polarity on the connector matches the power connector on the hub, check the label on the hub, sometimes it states to power requirements of the hub as well as the polarity on the connector. Normally the pin on the hub's power connector is positive (ie. +5V)

Nov 13, 2008 | Targus PAUH217U 4-Port USB Hub

1 Answer

I-rocks IR-4300 4-Port USB Hub doesnt work

You shouldn't need a driver for it, Windows has bundled native drivers that will be enough to make it work.
Does anything else work in the port you plug the hub into?

Jul 11, 2008 | i-rocks IR-4300 4-Port USB Hub

1 Answer

External Harddrive Ignorance...

I've seen this happen with hubs being connected to external hard drives before.

Do you have a free usb port on the back of your computer you can plug it into?

That should fix the problem.

Jun 11, 2008 | Belkin (F5U233-APL) 4-Port USB Hub

1 Answer


I'm a little embarrassed to say that the fix was easy. It just took me a long time to figure out. It turns out that even though the item was brand new the USB cord included was bad. When I replaced it with one I had on another item it worked fine. Thanks for the email.

May 01, 2008 | i-rocks IR-4300 4-Port USB Hub

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