1. Check the packaging: Check whether the outer packaging has been removed and whether all types of labels are complete.

2. Look at the label on the static bag: the hard disk label has SN, model and PN. Each of these tags has corresponding data. For example, SN is a serial number, and each hard disk has only one. A model is a model. The production notification is called the part number.

3. Check the SN number: Check whether the SN number on the label on the front of the hard drive is consistent with the label on the side of the hard drive. If not, you can be sure it's not true.

4. Appearance of the disk: Pay attention to check whether there are scratches on the disk body and whether there are traces on the screw holes. If used, there will be obvious marks on the hard drive screws, which are easy to distinguish.

5. Hard drive printing plate: Because it is vacuum packed, the plate of the new hard drive is bright and the components will not be oxidized to yellow or black.

6. The golden finger of the SATA interface: a brand new hard drive is usually invisible. If it's Goldfinger, it's obvious.