Why is the hard disk of Western Digital divided into green disk, red disk, purple disk, blue disk and black disk? What's the difference between them? Please explain in detail.

Green disk, blue disk, black disk, purple disk and red disk are all products of Western Digital. The so-called black disk, blue disk, green disk, purple disk and red disk refer to the paper attached to the hard disk, which is black, blue, green, purple or red. The black disk is currently guaranteed for five years, and the other colors are guaranteed for three years.

1, green disk is SATA hard disk, which has low calorific value, low noise, energy saving and environmental protection, but its performance is average, and it is mainly used for large-capacity data storage.

2. The red disk is a hard disk for the NAS market, for small-scale enterprise NAS users, and its performance is similar to that of the green disk.

3, blue disk is the mainstream pc hard disk, relatively common, suitable for home use, cost-effective, but the noise is a bit loud.

4. Purple CD-ROM is usually used in monitoring system, which can support up to 32 high-definition cameras.

5. The black disk is an enterprise-class hard disk with high performance, large cache and high speed, which is suitable for enterprises, servers and high-performance computers.