SSD disk WD Red SA500 4TB 2.5 Serial ATA-600 WDS400T2R0A

The WD Red SA500 4TB 2.5" Serial ATA-600 SSD (WDS400T2R0A) delivers high-capacity solid-state storage in a standard 2.5-inch SATA form factor. Designed and optimized for NAS environments and continuous operation, this 4TB SSD provides a balance of sustained performance and endurance for multi-user and mixed-workload scenarios. With sequential read speeds up to 545 MB/s and sequential write speeds up to 425 MB/s, it supports fast access to large files, quick system responsiveness and reliable storage for small and medium-sized business setups.

Advantages

The drive offers high-capacity storage in a compact 2.5-inch design compatible with standard SATA-600 interfaces. It is optimized for 24/7 operation to enhance data integrity and durability in network-attached storage systems. Performance characteristics include high sequential read and write rates that accelerate file transfers and improve application responsiveness. Built with features suitable for continuous workloads, the SSD reduces latency compared with mechanical drives and lowers power consumption in sustained use.

Suitable for

• Network-attached storage (NAS) systems in home, SOHO and small business environments
• File servers and archive storage requiring high-capacity, reliable drives
• Multi-user environments with mixed read/write workloads
• Systems replacing HDDs to reduce latency and improve performance

Key specifications

• Form factor: 2.5-inch
• Interface: Serial ATA-600 (SATA III)
• Capacity: 4 TB
• Sequential read speed: up to 545 MB/s
• Sequential write speed: up to 425 MB/s
• Optimized for continuous 24/7 operation
• Designed for NAS and multi-drive systems

How to use

Install the SSD into a compatible 2.5-inch drive bay or a 2.5-to-3.5" adapter in your NAS or desktop system. Connect the drive to a SATA III (6 Gbps) port and secure it mechanically according to your chassis or NAS carrier instructions. Initialize and format the drive using your operating system or NAS management utility, then configure it as a single-volume, part of a RAID array or as a dedicated cache device depending on your storage plan. Use firmware updates and monitoring tools provided by the manufacturer to maintain drive health and performance.

Usage recommendations

For reliable long-term operation, use the SSD in systems with active cooling and stable power. When deploying in multi-drive NAS arrays, follow the NAS vendor’s compatibility list and recommended RAID configurations. Regularly monitor SMART attributes and firmware updates to ensure data integrity and sustained performance.