Western Digital Red SA500 4TB 2.5" 7mm NAS SATA 6Gb/s Internal SSD

The Western Digital WDS400T2R0A-68CKB0 is a 4TB internal solid state drive designed specifically for network attached storage (NAS) systems. It connects via a SATA 6 Gb/s interface and fits into a 2.5-inch, 7mm drive bay, making it compatible with a wide range of NAS devices that require reliable, high-capacity storage.

This SSD is built to handle continuous, around-the-clock operation, which is essential for always-on NAS environments. It delivers strong sequential read speeds up to 560 MB/s and write speeds up to 520 MB/s, ensuring smooth performance when accessing or transferring large files. The drive also supports high random input/output operations per second (IOPS), with 87,000 for reads and 83,000 for writes, which helps maintain responsiveness in multi-user setups or when running demanding applications like online transaction processing databases or video editing workflows.

With a 2500 TBW (terabytes written) endurance rating and 3D NAND technology, this SSD is built to withstand heavy workloads and frequent read/write cycles without compromising reliability. Its architecture includes caching of frequently accessed data, which improves overall system efficiency and reduces latency during repetitive tasks. The Western Digital Red SA500 is an excellent choice for users who need a durable, high-performance storage solution in a NAS environment, whether for small business servers, creative workstations, or home media servers.

Backed by a 5-year limited warranty, this drive offers peace of mind for long-term use in demanding storage scenarios.

Highlights:

• 4TB capacity in a 2.5-inch SATA form factor suitable for NAS devices
• Sequential read speeds up to 560 MB/s and write speeds up to 520 MB/s
• High random IOPS performance: 87,000 for reads and 83,000 for writes
• Endurance rated at 2500 TBW for sustained heavy workloads
• Designed for 24/7 operation with a 5-year limited warranty