WD Red is a line of hard drives designed specifically for use in network-attached storage (NAS) systems. These drives are optimized for 24/7 operation, making them suitable for home and small business environments where data is accessed frequently. They offer features like low power consumption and enhanced reliability to ensure data integrity. The WD Red drives come in various storage capacities, typically ranging from 1TB to 14TB, catering to different user needs. They support RAID configurations, which help improve data redundancy and performance. Overall, WD Red drives are a popular choice for users looking to store and manage large amounts of data efficiently.