WD202KFGX WD Red Pro 20TB SATA 512 MB 3.5" Server HDD

High-Capacity 3.5-inch SATA NAS HDD featuring CMR performance consistency with the WD202KFGX

The WD202KFGX is a 20TB 3.5-inch internal SATA HDD engineered for always-on NAS storage pools and multi-bay RAID arrays where predictable write behavior and recoverable performance matter. In architectures built around x86 NAS controllers and modern storage SoCs, the WD202KFGX complements CPU-bound services such as SMB/NFS, snapshots, and checksum operations by providing consistent block delivery for mixed sequential and random I/O.

Designed for SATA backplanes and HBA/RAID controller connectivity, the WD202KFGX integrates cleanly into PCIe-based storage expansion strategies without requiring changes to the compute platform or memory footprint. Its 512MB cache and 7200RPM CMR recording support steady ingest and rebuild characteristics, while the 512e sector format aligns with common enterprise OS and RAID stack expectations. The helium-filled design increases capacity density and supports lower power draw in dense enclosures, helping maintain thermal headroom across 24/7 duty cycles.

Why Choose the WD202KFGX?

The WD202KFGX targets NAS and nearline tiers that demand high capacity per slot with operational stability under sustained multi-user access. For branch storage, departmental repositories, and scale-up RAID shelves, the WD202KFGX delivers a balanced density-to-performance profile, supports predictable array behavior during resilver operations, and is engineered for continuous deployment in multi-drive environments.

WD designs the WD202KFGX with an enterprise-focused reliability approach, combining mechanical optimization with workload-appropriate firmware behavior for NAS arrays. With a 2.5M-hour MTBF rating, the WD202KFGX aligns with data centre expectations for long service life, disciplined error handling, and consistent operation in vibration-aware enclosures.

Key Applications:

• SMB and branch office NAS storage pools
• RAID arrays in multi-bay NAS enclosures
• Nearline archive and compliance repositories
• Backup targets and disk-based retention tiers

At Happyware - Server Hardware you benefit from Bulk Order Discount options for standardizing WD202KFGX deployments across multiple NAS nodes or RAID shelves, and you can extend the warranty up to 6 years to protect long-lived storage investments.