This multi port card features 4 USB2 ports, 2 SATA ports and 1 dual RAID IDE controller; the USB ports work (under USB 1.1) as long as I comment out the EHCI module from kicklayout. There does not yet exist a driver for the RAID ISE controller / SATA VT64
If your AmigaOne system dates before 2007, chances are you only have IDE. Add up to four internal SATA ports and two external eSATA ports for modern storage devices. Supported by OS4 sii3114ide.device driver.
PCI card, no problem with Amiga one + OS4 (upd 3).Just take care in the UBOOT environment variables ! (You can do it without problem if you search about silcard in AMigaWorld.net).