The different colors of Western Digital hard drives indicate various product lines, each featuring unique performance characteristics and suitable use cases.

• Blue Drives: Mainstream products with a typical speed of 7200rpm, available in capacities ranging from 500GB to 18TB. They are ideal for general home users, gamers, and office applications.
• Green Drives: Energy-efficient and environmentally friendly, these drives typically operate at 5400rpm and have capacities from 500GB to 14TB. They are suitable for users with high capacity requirements but lower performance needs.
• Red Drives: Designed specifically for NAS (Network Attached Storage), these drives usually run at 5400rpm and come in capacities from 2TB to 18TB. They are known for high reliability, durability, and low noise.
• Purple Drives: Made for video surveillance applications, these drives generally operate at 5400rpm and range from 2TB to 16TB in capacity. They excel in environments requiring 24/7 operation, offering high durability and stability.
• Black Drives: High-performance products with a typical speed of 7200rpm, available in sizes from 1TB to 18TB. They are perfect for high-end gamers, professionals, and enterprises.

Below is a detailed comparison of Western Digital hard drives based on their color:

When selecting a Western Digital hard drive, users should choose the right product based on their specific needs and usage scenarios.