GL811E-04 Chipset for IDE to USB

Greetz!

I am planing to get an IDE to USB adapter for connecting various IDE devices (DVD writers and HDDs) to my PC over USB. Looking for some cheap solutions, I found an adapter made by EasyDrive which allows you to connect devices from 1.8" to 5.25" via USB 2.0. The price is 10 €. Here is a picture of it: http://www.easydrive.de/ide2usb/ide2usb3.jpg
The producer states that the adapter uses the GL811E-04 chipset and I was wondering how good it is. Are there any known problems with it?

Also, what is going to be the maximum CD and DVD write speed when using such a device? I am planing to get an LG GSA-H10L when it’s available in Germany.

Regards,
Sebastian

Hi,

There were problems reported with such in the LG forum. I don’t remember exactly the issue.

Also, what is going to be the maximum CD and DVD write speed when using such a device?
That depends on the drive and your USB controller setup. UDMA-2 drives won’t go faster than 12x, and if you are using a Cardbus or PCI USB card, then you’ll be even restricted to 8x.

See also
http://club.cdfreaks.com/showthread.php?t=190288
http://club.cdfreaks.com/showthread.php?t=175536
and the The big external enclosures thread

Michael

Since I don’t know much about the technical background of these limitations, could someone explain why UDMA-2 drives, when connected to IDE, can go up to 18x, while when connected via USB 2.0, can only reach 12x or even 8x? Isn’t USB 2.0 capabile of reaching 480 Mbits/s (18x would be 194,4 Mbits/s).