I have an Eagle Tech 1.5TB Hard Drive. The product specs are as follows
• Type: External hard drive
• Form Factor: 3.5”
• Hard Drive: 1.5TB (2 x 750GB 7200RPM 16MB cache each)
• Internal Interface: SATA I/II
• External Interface: Hi-speed USB 2.0
• Data Transfer Rate: 480Mbps
• Power Source: Universal Switching Power Adapter (5V/12V 2.0A)
• Power Input: 100-240VAC, 50/60Hz
• Certification: FCC, CE Certified and RoHS compliant
• O.S. Required: Microsoft Win98SE/Vista/ME/2000/XP Mac OS 9.0 or higher Linux
• Dimension: 5.2 x 8.4 x 4.3 inch
• Weight: 3.0 lbs
The features include:
• Cool running 1.5TB
• JBOD allows you to add capacity as needed
• One touch backup (OTB) with software by FNet
• Virtualization software by VMWare (30 day trial)
• User changeable 2 color bezels
• Ultra thick 2.0mm aluminum
• 6cm smart fan
• Plug-n-Play USB 2.0
• Usage: Scheduled backup & synchronization of important files between PCs
Now here’s the problem. When I plug it into my computer it recognizes that there is something plugged in, but won’t read the drive or make it accessible to me. In other words, if I were to go under the Remove Hardware tool, it’ll show that there is a “mass usb storage device”. However, nothing shows up under My Computer. I’ve tested it on 3 laptops, a Sony Viao, Toshiba Satellite and an HP Presario. So I know it’s not a system error.
Does anybody know what’s wrong, how to fix it or at least where I can find out what’s wrong with it or how to fix it? Any help at all would be supremely helpful. There are some really important files on there that I actually need (not want, need). Please help if you can. Thank you.

I guess your external hard drive is broken. Sigh, **** when these kind of things happen. It is possible that your external hard drive is broken. Have you tried plugging it into another usb port? If it came with SATA connector, try hooking it up inside the computer that may work. There aren’t much explanations why its not working. You can take it to the computer shop and ask them why its not working.
Plug the E-HDD again to you computer.
After that go to Control Panel>Administrative Tools>Event Viewer>System
or >Application
There should be red circle with white exclamation sign(error sign).
Click on it and a snippet will show up(in XP) or in part if the window(Vista)
In the lower end of the snippet you will see a link to Microsoft Help and Support Center where the error will be explained in detail.
Good luck
i had the same symptoms when my HDD was broke ,do you have warranty?
if you tried to unhook it to attach the 3,5 directly to a laptop.you will lose it,take it to them and tell them that it contain crucial data