Question about GE JASCO (HO97878) 4-Port USB Hub

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When I plug a device into the hub, I can't locate it.

I connected the hub to one of my usb 2.0 ports and plugged it into the power supply. Then I plugged a flash drive into the hub but the computer did not find it.

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  • Anonymous Mar 06, 2008

    when I plug my USb ,,it does'nt recognized by the computer

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  • 85 Answers

For usb hubs some of the port could fail any time so test all the ports to identify which one is working

Posted on Apr 22, 2008

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When my computer searches for new hardware, it recognizes it and then installs it as "Unknown Device" The device still will not work, however, because when I check it in the device manager it...


This device should be recognized automaticaly by the OS. There are some issues with Windows 7, though.
Make sure you are trying to plug it in a 2. USB port, rather than 1.1. This might cause you trouble (even though this will not be a problem if you have a new computer)
Connect the hub to the external powercord. Sometimes it is not recognized because the hub cannot drain enough energy from the port.
if you are using a desktop pc, make sure it is plugged in the rear usb ports and not at the ones up front.
refer to the manual for further assistance: http://www.dynexproducts.com/cms/documents/DX-B4PORT-B7PORT_09-0962_QSG_V4_ENG_Final_lr.pdf

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hmmm..not too cool..can you see that hub through system device managers

Mar 16, 2008 | Belkin (F5U237) 7-Port USB Hub

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The cable that came with my hub has a pigtail for connecting to the computer. TWO USB plugs. I have long since lost the packaging so I don't know what they are for. One is blue while the other is the...


It could be to supply extra power to the hub. Basically the USB can only supply 500mA of power so by using 2 ports one can supply 1000mA double what one port could power.

Feb 26, 2011 | Sakar (M01517) 5-Port USB Hub

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I have a model m01517 5 port usb hub. It has 2 usb cables to the computer, do I use the blue or black connector? I can only get one port to recognize a device plugged in the other four seem to be dead,...


Not sure I understand this hub either. Looks like only one port is a USB 2.0 port, but here is a snippet from the manual......

This iConcepts USB Hub provides the electronic interface between USB devices and the host, It allows up to five USB devices or Hubs to connect an upstream USB Hub or Host port.

Features
• One USB 2.0 port
• 4 Port USB 1.1 and support high speed (480 mbps) and 4 port full speed (12 mbps) operations.
• The USB 2.0 port can operate both USB 2.0 & 1.1 Devices
• USB 2.0 port supports self powered mode and bus - powered mode, indicated by a powered LED .
• Over current detection and protection


Manual is provided here: http://www.sakar.com/p-1124.aspx?categoryid=182

Sep 09, 2010 | Sakar (M01517) 5-Port USB Hub

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Hello, I have a Belkin 2.0 USB 7-Port Hub, and having trouble with it. When i plug it into my computer, nothing happens, there is no power light and ultimately it seems as though the device is dead. ...


You first need a CAT 5 cable to go to where your internet connection is, such as a modem or another router to your hub. Then you plug another CAT 5 from the hub to your PC. You need to feed internet to the hub then your pc will recieve a connection from the hub. And of course the hub does need power. Hope that's what you were asking.

Mar 09, 2010 | Belkin (F5U237) 7-Port USB 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 ports not working


Check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.

Also check HP's support section on the web for any updated drivers especially for your laptops motherboard / bios

Any exclamation marks by hardware need fixing before you investigate any further
Once you have done that try some of the common fixes below.

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

Aug 30, 2009 | HP GbE2c Layer2/3 Ethernet Blade Switch...

1 Answer

USB hub not working?


When you get USB devices, some have their own power, like a plug-in hard drive, and some get their power from the host, like jump drives. My USB scanner gets power from the host, but if you plug it into a USB hub, it sucks the power from the host. Too many of those devices and the scanner fails, so they suggest you don't plug it into a hub.

Here's where the BUS and SELF switch come in. Somewhere, there is a 6v DC power supply that either came with your Belkin or is optional. If you use it, and put the switch on SELF, you don't have to worry about what you plug into the ports. If you don't care, or don't have the power supply, you can put the switch on BUS, but be aware that not all USB devices you plug into the hub will work, or a combination of two devices may not work.

Carl

May 20, 2009 | Belkin ExpressBus (F5U021) 4-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

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