Acard has removed files/support for all their old products except SCSI/IDE bridges from their website. Actually, it looks like the whole company has changed identity.
Anyway, if you need or in teh future may need drivers/firmware/utilities/manuals for Acard products, get them from the Wayback machine while you still can.
Anyway, if you need or in teh future may need drivers/firmware/utilities/manuals for Acard products, get them from the Wayback machine while you still can.