Question about CyberPower CPH420P 4-Port USB Hub
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
Posted on Sep 05, 2009
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Posted on Jan 02, 2017
SOURCE: USB hub
Do you have Windows XP and at least Service pack 2 installed.
Service Pack 2 comes bundled with the neccessary drivers for USB 2.0
In device manager under the USB heading you must have:
PCI to USB Enhanced Host Controller
In the list.
Posted on Jul 22, 2008
I think it clearly states that the device is defective.... you need to call IOGEAR for RMA if its still under warranty
Posted on Feb 02, 2009
Have you install the driver first before connecting it? Check out the Device manager entries if showing any yellow mark?
Goto start --> Run --> type in there --> devmgmt.msc this will open up the Device manager.
Check it and let me know. Have a nice day
Posted on Mar 17, 2009
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Did you download the Win 7 64 bit drivers for this printer. If not i suggest try downloading the drivers from the following link
Check the USB connection
The icon on the USB cable ( ) faces up when the cable connects to the product correctly. Check the back of your product and the back of your computer to make sure the USB cable connects correctly and securely.
After you make sure the USB cable connects correctly and securely, review the following guidelines to check other potential USB-related problems:
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