Use the following criteria to find a donor drive.
- Model number: Match the model number exactly.
- Part number: Match the part number exactly.
- Heads map: Match the physical heads (PH) map exactly. It is OK if the donor has more heads than the original drive, but all heads before that should match.
- MLC: Match the MLC exactly.
- Date of manufacture: Should be within three months — the closer the better.