Plug and play out of the box with no serious issues. Tested on three different motherboards running SuSE Linux 9.2 Professional and the card worked fine on all three. The two MSI motherboards (MS-6390 and KM3M-V) oddly put the hard drives connected to the SIIG card BEFORE the drives connected to the motherboard -- the SIIG drives are hda, hdb, hdc, hdd, so the first motherboard drive starts at hde. This little annoyance can be fixed by using GRUB to reorder the drives. When the SIIG was tested in the VIA EPIA-PD Mini-ITX motherboard the SIIG drives were ordered AFTER the motherboard drives (motherboard drives were a, b, c, d and SIIG drives were e, f, g, h ).