Originally posted by DJOtaku
I wanted to add a USB 2.0 PCI card, probably like this one "Adaptec 6-Port USB 2.0 PCI Card" at Best Buy. As usual they only talk about the PC and Mac requirements so I don't know. I would probably more likely be swapping out an older 2 port from my computer into the Linux one and putting the 6 port into my PC. But I think it's the same company. The one going into Linux would be from circa summer 2002.
If anyone has stories good or bad about this, let me know.
Almost all USB controllers comply to a standard, so almost all of them work.
If it is a USB 1.1 controller complies either with UHCI or with OHCI. (both of them are supported)
All USB 2.0 controllers comply with EHCI which is supported as well.
With other words, almost any controller you will buy will work.
I browsed the Adaptec website and i could find only one 6-port PCI card.
It is the USB2connect 5100 (http://www.adaptec.com/worldwide/sup...UA-5100#suppOS
The specification mentions
Data Transfer Rate
USB 1.1 OHCI-1.5 Mbps, 12 Mbps
USB 2.0 EHCI-480 Mbps
So, it is supported.
Originally posted by yujun
by the way ,did you test your card's performace on data transfering ? USB 2.0 has 60MB/s theory speed but mine is Ultra lower.....
Thanks a lot,
USB 2.0 has a maximum bandwidth of 480 Mbps (60 Mbytes/sec) but the USB protocol has a rather large overhead and
uses a Master/Slave architecture.
I don't want to get in detail, there are many sites that describe USB.
In a few words, if you get 25-35 MB/sec then it is ok.