Whats the difference between ATA-5, ATA-6, and ATA-7 drives?
Drives with capacities larger than 137GB are ATA-6 or ATA-7. This means that the drive block size is different than the older, smaller capacity drives and ATA-5 hard disk drive controllers cannot read them. Today, even smaller capacity drives are using the ATA-6/7 block size. All current WiebeTech products are ATA-6/7 compatible.