FastTrak TX4650 -- 4-port PCI Express x1 to SAS/SATA 3Gb/s RAID0/1/5/10 and JBOD Controller Card. The low-profile form factor FastTrak TX4650 controller offers a low-cost solution for implementing a RAID storage system with up to two high-performance SAS or SATA 3Gb/s disk drives spanning server, workstation and desktop markets.