my FW800 MDD came with a two port USB 2 card. To get more pots i added in a USB 2 port card however its only a USB 1.1 card the USB 2 card is a belkin with a NEC chip the card i added (mainly to see if it would work) has a PCS chip. The driver loaded for it was Apple's generic USB driver. Does this mean ANY USB card will work? Also i would like to upgrade to SATA Drives my Silicon Image 3512 card does not work. the SI site states the OEM of the card makes drivers. But the Manufacture of mine only has win drivers. Does anyone know a card manufacturer this has OS X drivers for this chip?