5.25-inch drives 2.1GB to 12GB drives for consumer PCs.
3.5-inch drives 1.0GB to 8.4GB drives for entry-level, mid-range and high-end
PCs.
Workstation and systems storage
3.5-inch drives 4.5GB to 18.2GB high-performance drives for low-end to
midrange servers, disk arrays, workstations and storage intensive applications
such as networked databases, graphics, imaging, digital video, transaction
processing and CAD/CAM.