1, the warranty time is different: 3 years for blue disk and 5 years for black disk;

2, the corresponding mainstream users are different: the blue disk is mainly aimed at ordinary users, satisfying the use of ordinary users, and the black disk is aimed at professional enthusiasts and those who pursue the ultimate performance, satisfying the ultimate pursuit of enthusiasts;

3. Different levels: the blue disk is the mainstream hard disk, and the black disk represents the high-performance hard disk.

Extended data:

Western Digital Other Color Hard Disk:

1, green disk: green represents environmentally friendly hard disk products. Green, with its fresh and environmentally friendly meaning, represents the energy-saving and environmentally friendly hard disk in the 3.5-inch WD caviar series. WD Green Hard Disk with WD GreenPower technology provides a quieter, more environmentally friendly and lower power storage solution for energy-saving consumers.

2. Red disk: Red disk is located in home and small office NAS, with 7×24 working ability. Power consumption and noise are equivalent to those of green disk, but they are far superior to green disk in reliability and stability.

3. Purple CD: Purple CD is specially designed for video surveillance applications. It has passed the special monitoring compatibility test (including CCT certification), and can run continuously for 24×7 hours, with an average time between failures of 654.38+00000 hours. Suitable for home use, SOHO, small and medium-sized enterprises. Up to 8 hard disks can be connected in parallel, and up to 32 high-definition cameras can be connected. The annual writing load is 60TB, and the typical power consumption is 5.1w..

For a long time, Western Digital has been committed to providing perfect storage solutions for PC users around the world. Western Digital provides rich service experience for users and organizations who collect, manage and use digital information. Western Digital's product line covers enterprise servers, desktop IDE hard drives, mobile storage applications and AV fields.

References:

Baidu Encyclopedia-Western Digital Hard Disk