SanDisk WD Red SN700 NVMe SSD 4TB

The SanDisk WD Red SN700 NVMe SSD 4TB is purpose-built for NAS caching environments where sustained read/write performance, thermal stability, and endurance are critical requirements. Based on WD's proven NVMe architecture, the SN700 leverages 3D TLC NAND paired with a high-performance controller tuned specifically for the mixed sequential and random I/O patterns characteristic of NAS caching tiers. The drive operates in the M.2 2280 form factor and communicates via PCIe Gen 3x4 interface, delivering throughput that dramatically outpaces SATA-based SSD caching solutions while maintaining compatibility with a broad range of small and medium business NAS enclosures from major vendors including QNAP and Synology.

The SN700 4TB variant is optimized for write-intensive caching scenarios, incorporating a high drive writes per day (DWPD) rating that ensures long operational life even under continuous NAS cache promotion and demotion cycles. The firmware is specifically validated for NAS operating conditions, including extended idle states, sudden power events, and multi-drive thermal environments common in desktop and rackmount NAS chassis. SanDisk's end-to-end data path protection guards against data corruption through power loss mitigation circuitry, making the SN700 suitable for business-critical storage infrastructure.

As a 4TB capacity NVMe cache drive, the SN700 provides a substantial working set for large media libraries, virtualized environments, and high-concurrency file sharing workloads. Its combination of sequential read speeds exceeding 3,400 MB/s and high random 4K IOPS ratings means that NAS appliances equipped with the SN700 can serve multiple simultaneous users with dramatically reduced latency compared to hard drive primary storage tiers. The drive's compatibility with NAS-specific SMART attributes and monitoring utilities allows IT administrators to track endurance metrics and health in real time through native NAS management interfaces.

Ideal for

• NAS SSD caching tier acceleration in small to medium business QNAP and Synology appliances to reduce HDD latency for frequently accessed files
• Virtualization host NAS environments where VM image files benefit from NVMe-speed cache reads to reduce boot storms and storage I/O bottlenecks
• High-concurrency SMB/NFS file share deployments serving design, media production, or engineering teams requiring low-latency random I/O
• Surveillance NAS systems where simultaneous multi-stream write operations demand consistent sustained write throughput without performance degradation
• Backup-to-NAS landing zone acceleration where rapid ingest of backup jobs from multiple agents benefits from high sequential write speeds
• Database and application data tiering in NAS-attached storage architectures where hot data sets are promoted to NVMe cache for read acceleration

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.