Adaptec is well-known as the most reliable name in SCSI adapters and the 2906 is no exception. I purchased this card to connect a Syquest drive to my tower PC, which is just old enough to have one PCI slot. Although neither Microsoft nor Adaptec support the 2906 on 64-bit Windows, it's possible to use an old Vista driver with some INF file mods to get this card working. See www(dot)colorperfect(dot)com/Vuescan/Adaptec-SCSI-controller/AHA-2940-etc/driver-for-64-Bit-Windows-7-and-8/.