The Quantum Fireball KA is Quantum's first 7,200 RPM ATA/66 hard drive. Models are available from 6.4 to the 18.2 Gig unit which I reviewed. The drive features an average 8.5ms seek time and a 512K buffer. Even though it's an ATA/66 hard drive, it will work even if you don't have an ATA/66 control card (the hard drive will automatically change to ATA/33). Here are the specs: