Question about Micro Innovations Compaq CPQ24USB

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Cpqusbfw usb hub

I;m having trouble trying to find which ac adapter to use for this hub ! can anyone tell me the specs for the ac adapter Please cant find any help from manufacter >

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  • Anonymous Sep 20, 2008

    I have the same question! My guess would be a 5vdc adapter but who knows the polarity?

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First, it should be noted that the CPQ24USB is bus powered (does NOT require AC adapter in most cases) and will support multiple (up to 4) devices that are NOT solely bus powered or or draw very little current such as: optical mice transceivers, printers, and thumb drives.
If, however, you intend to use multiple power hungry devices that are solely bus powered and draw higher current values than a single USB port on your PC or Laptop can typically handle, you WILL NEED and A/C adapter that is unfortunately no longer made by MicroInnovations (Compaq).....

WORKAROUND: Purchase, borrow, or hunt down & dig out that old multipurpose generic AC/DC selectable (changeable) power adapter with variable voltage and a variety of different sized male adapters. IT IS IMPORTANT TO LOOK AT THE SPECIFICATIONS!

Make sure it supplies the following OUTPUT:
Voltage: +5.0 VDC (not AC!)
Current: .2 - 2.5 Amp (do not exceed this current rating)
Polarity: Tip = (+) positive ' Ring/Sleeve = (-) negative
(it is very important that you observe correct polarity so check the switch on power adapter to make certain the INSIDE of the male plug is the POSITIVE DC OUTPUT, and that ground is on the outer metal sleeve)
This is based on US voltage standard so input would of course be 120 VAC and max current of 5A, but there are travel adapters for foreign countries that would supply these output requirements while accepting the DIFFERENT VOLTAGE standards of other countries if required.

Posted on Feb 28, 2015

I have one of those hubs the ac adapter is output +5V, and current 0.2 - 2.5A, inside of connector is pos(+), outside is neg(-), input: 100 - 120 Vac and 0.45A Max

Posted on Oct 04, 2008

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I just got the mp3 player. ive been charging it but when i disconnect it from my computer it shuts off and wont turn back on. HELP!


Some older computers that have USB ports that limit the output to 5V @ .5 amp current. Depending on your MP3 player, it may not be sufficient to charge the player. This was the spec back then. Since then, new USB specs call for 5V @ 1.0 amp current - a two fold increase in current.

You may have better luck connecting to a powered USB hub instead. If you're only looking to charge the MP3 player, you don't even need to connect it to the computer. The powered hub gets powered by connecting the ac adapter / power supply to a wall outlet - instead from of the computer's power supply via mother board.

The above assumes there is a good, rechargeable battery; a functioning charger & USB port in the MP3 player and of course, a working USB cable. If any of the above is faulty, you'll never get the MP3 Player to accept a charge. You should try different computers, cables and ports if possible.

Good luck!

Sep 07, 2011 | Computers & Internet

3 Answers

I am repeating that I bought a Belkin USB 7 hub for flash drives and it was working properly and all of sudden it won't work. does this happen often? What can I do since there is a lifetime warranty?


in that case, use your lifetime warranty because they have their on tools to fix your device and i suppose that they are very familiar with your problems. use the advantage of it. hope that helps!

CHARCOIS

Aug 20, 2008 | Computers & Internet

1 Answer

When i put the USB cable and connect to the LAP, its not getting charged. How can i solve the problem? do i need to install any software?


Hi - when you say "LAP" I assume you mean laptop or notebook computer. Some computer USB ports do not have sufficient power to charge (or operate) devices like cellphones, GPS, large external hard drives, etc. You may be able to charge if you disconnect all other USB devices that aren't needed to run the computer. In order to get around the problem without having to do all that, either purchase an external charger for the GPS (which may be fairly expensive) or purchase a powered USB hub.

An external powered USB hub looks like a traditional USB hub, except for the fact that it has a power cord to connect to your home power outlets. The power cord will often look like AC adapter. The powered USB hub is ideal because they provide additional USB ports, are fairly inexpensive, they provide all the power for the USB devices that are connect to them (the computer's internal power supply is not used) and it can power or charge devices connected to them without needed the computer to be powered on. Simply plug the USB hub into a USB port, and AC power source - then connect the devices that need a large amount of power to the hub's USB ports instead of the computer's USB ports.

steve_con_70.jpg
The parts included with powered USB hub (clockwise from left): USB hub, USB connecting cable and AC power adapter.

Many powered hubs will work without the power adapter - however they will supply power to the devices connected from the computer's internal power supply.

I hope this helps and good luck! Please rate my reply. Thank you.

Jun 08, 2011 | GPS

1 Answer

I Have Toshiba Satellite Laptop, i am continuously getting pop up message " Power Surge On Hub Port " A USB device has exceeded the power limits of its hub port. Please help how to stop this pop...


Remember the help below is only a fix for seeing the error message not for overdrawing the port.



To stop overdrawing the port you need to either use a power supply or a double USB cable.



To prevent seeing the USB Power Surge alert message, complete the following steps:

Click on START, Click on CONTROL PANEL, Double-click on the SYSTEM icon, Click on the HARDWARE tab, Click the DEVICE MANAGER button, Click the "+" next to Universal Serial Bus Controllers to expand the selection.,Right-click and select PROPERTIES on the Intel® USB UNIVERSAL HOST CONTROLLER (not the USB Root Hub),Click the ADVANCED Tab, Check the box that says: "Don't tell me about USB errors"


Nov 29, 2010 | Amstron Toshiba Satellite A80 Laptop AC...

1 Answer

No power seems to be getting to the hub


Hi,
Please check the status of the AC power socket
Then the status of the power adapter which is providing DC power to the switch
If its a new switch please check with the vendor
These small power adapters used to have small resistance to voltage fluctuation and easily wears out.

Nov 01, 2010 | Belkin (F5U237) 7-Port USB Hub

1 Answer

My Targus keeps disconnecting what is connected to it then will reconnect (seems random) anyone else having problems with disconnecting devices plugged into the hub? Model ACH7405US


This USB hub is not powered by an AC adapter. Therefore, some devices that need more power will not work well on it. You don't mention what it is you are pluggin into it, but I suspect this may be your problem. Devices like webcams pull way too much to be on a hub without AC.

Did I solve your problem? If so, please rate this. ty.

Feb 26, 2010 | Targus PAUH217U 4-Port USB Hub

1 Answer

My computor switches off the moment i plug in the wd passport.


Probably a power issue. Your new computer has less extra power capacity and the external drive is pulling from the USB port power.

What you need is a USB hub with an AC adapter that powers the hub and any devices that are connected to it from the external AC power adapter and NOT from the USB bus. In other words look for an external power adapter that plugs into the wall as well as into the USB port. Don't get a recharger for an iPOD as that will not do you any good. And don't get a hub that says "powered" or "external power" that does not have an AC power adapter because it is still sucking power off of the USB port.

Try shopping for a D-Link DUB-H4 High Speed USB 2.0 4-Port Hub. It is a good choice if you are not going to plug any USB 1.1 devices into it. Read the reviews for any device you choose.

Oct 26, 2008 | Western Digital Passport WDXML800UE...

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AC adapter (100-240VAC, 50/60Hz, 2A, 12VDC output)

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Via Vectro VT6212 adaptor not recognized by WindowsXP SP2


is the usb 2.0 card driver properly installed?,is there any conflict?

Feb 24, 2007 | VIA Vectro VT6212 (A62124) Serial Adapter

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