Add more storage to your PC with an Ultra ATA/133 drive controller card from Star Tech.com. The PCIIDE2 features two IDE drive ports with data transfer rates of up to 133 MBytes/sec. The card can act as the primary boot device & replace built-in IDE ports, or provide an additional 2 high-speed ports to the system. Designed to perform with high-speed IDE/133 drives, the PCIIDE2 also supports 100 MBytes/sec hard drives, 66 MBytes/sec hard drives, 33 MBytes/sec hard drives, CD-ROMS, CDRW drives, & other ATA peripherals. Bus-Master drivers are included for DOS, Windows 95/98/ME/NT 4/2000/XP & Vista.