eSATA PCI Express Card for 3,1

[nxfxcom]

Hello,

ok, i need more storage, so i am looking into getting a nice external raid drive, but Firewire and USB are to slow, so i want to get one with a eSata connector, so now my problem:
what card is compatible with the MacPro3,1 running Leopard.

Thank you

 

[rhyx]

I got the adapter sold by OWC that connects to the extra two motherboard ports and then provides eSata on the back. However it does not allow "hot swapping" of drives. They must be connected when the computer is turned on.