It is,you do not have to set up an array though,I bought a pci raid card with 2 ide channels for about £15,thi s on its own non raid can support 4 devices either optical or hard drive.In raid it supports mirroring or stripe,you can buy cards cheap with either ide or sata
http://www.eclipsecomputers.com/prod...de=IO-PIDE133R
http://www.ebuyer.com/customer/produ...duct_uid=48670
non raid sata card