Question about D-Link DUB C2 (DUB-C2) Serial Adapter

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D-Link DUB-C2 does not recognize external storage device

I perchased the D-Link DUB-C2 PCMCIA USB hub but the D-Link DUB-C2 does not recognize external storage device. it does recognize the USB Mouse. but when connecting external USB storage device, it shows unknown device. the same USB storage device is working properly when directly connected to the laptop USBs

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Download the latest drivers and firware for the card.

Posted on Aug 26, 2007


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Where can I find a windows 7 driver for the d-link dub h7 (7 port usb hub)

Manufacturer's site for this product:

Click on the Support Resources tab.

Click on Quick Install Guides

Your going to find that only Win98, WinME, Win2K, WinXP, Mac OS are currently supported.

Suggets tou write to D-Link to express your need:

Jan 26, 2011 | D-Link DUB-H7 USB 2.0 7 Port Hub

1 Answer

All External storage devices "USB Device Not Recognized"

Dear Sir,madam
You have to do some steps about fixing this problem :
1: Go to Device manager by right click on my computer then manage and then device manager.
2: Go to universal serial bus controller and export it.
3: in each USB root hub right click and then properties.
4: In properties screen select power management tab and unmark on " allow the computer to turn off this device to save power ".
5: After finishing this steps in each USB root hun restart your computer and then done

Jul 24, 2010 | Microsoft Windows XP Home Edition

2 Answers

How do I set up a d-link dub-h4 to my laptop I have a power connection, a connection on the rear of the hub-4 going to an adapter connecting to the ps/2 connector on the laptop. Do I need one of the...

The connection on the rear of the hub should go to a USB connection on the laptop, not a PS/2 connection. A PS/2 to USB adapter is used to connect a PS/2 keyboard or mouse to a USB connection.

Feb 23, 2010 | D-Link (DUB-H4) 4-Port USB Hub

1 Answer

I reinstalled my OS win XP . now no usb

Open Run and launch regedit
Browse to the following location
In the right pane, look for an entry named Start. If you find one delete it. Your USB devices should start working immediately.
If not please report back.

Nov 11, 2009 | Acer TravelMate 240 Notebook

1 Answer

Usb not recognizing device t2882

What I suspect here is that,
Provided the operating system that you are using is Up to Date (e.g WinXP SP2 to Win Vista),

the USB port that you are using might be a USB 1.0 port, which has a lower voltage not enough to power on your Storage drive.

In this case, there are two things you can do,

1. Change the USB port you are using for the storage drive to a USB 2.0 one (Just keep Checking all the ports one by one in case you dont know which one it is).

2. If your Storage drive has external power facility, just plug it in an external power first, before connecting it to the system.

If there are no USB 2.0 Ports on your system at all,

then just go to any electronic store and tell them you want to buy a USB 2.0 Expansion card.

and if it is a laptop, A USB 2.0 PCMCIA card.

Install it on your system, and connect your external drive through it.

Hope this helps you out.


Oct 30, 2009 | E-Machines eMachines Desktop PC

1 Answer

Ps2 port doesn't recognize Microsoft Optical mouse

You might think about a USB hub for all your USB devices. ps2 port is more or less dedicated for mouse, which is why your mouse pointer is stuck in the middle of the screen. Go ahead and get an externally powered USB Hub to power other USB devices. To answer, ps2 for mouse needs just a mouse, not USB device.

Sep 28, 2009 | Microsoft Windows XP Professional

1 Answer

Mouse will only work if directly placed in the usb port

this is really strange
i have buy a hub on chinese store and the computer recognize only the mouse, not the hub, but it works

try to install the driver if the mouse have anyone. and try to install the driver of the hub

May 18, 2009 | HP OmniBook XE2 Notebook

1 Answer

External mouse not recognized

Go in device manager and uninstall the usb root hub one by one and then restart the machine twice then check wether it is working or not.

Jan 18, 2009 | Toshiba Satellite A135-S2276 Notebook

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...

1 Answer

Wd passport

I would suggest an externally AC powered USB hub. Try the D-Link DUB-H4 High Speed USB 2.0 4-Port Hub. Read the reviews for any other hub you might choose.

Oct 05, 2008 | Western Digital Passport WDXML800UE...

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