WD4002FYYZ WD Gold 4TB SATA 128 MB 3.5" Server HDD

High-Performance 3.5in Enterprise SATA HDD featuring CMR reliability with the WD4002FYYZ

The WD4002FYYZ is an internal 3.5in WD Gold enterprise HDD engineered for predictable throughput and consistent latency in rack server and storage enclosure deployments. In CPU-dense platforms where memory bandwidth and PCIe lanes are reserved for compute, the WD4002FYYZ provides a cost-efficient SATA storage tier for bulk datasets, repositories, and capacity-focused RAID groups without consuming PCIe expansion resources.

Architecturally, the WD4002FYYZ aligns with controllers and backplanes optimized for SATA fleets, supporting stable operation in 24/7 mixed read/write duty cycles. Its 7200RPM design and onboard cache are tuned for sustained transfers and RAID rebuild behavior, while CMR recording avoids the write-amplification and recovery unpredictability associated with SMR in multi-drive arrays. The 512n sector format supports legacy and enterprise OS stacks that require native 512B addressing, reducing translation overhead in certain storage software layers.

Why Choose the WD4002FYYZ?

The WD4002FYYZ is a pragmatic choice when density-per-U and reliability matter more than NVMe-class IOPS, enabling scalable capacity nodes and RAID shelves with consistent operational behavior. With TLER to cooperate with hardware RAID and a 2.0M-hour MTBF profile, the WD4002FYYZ supports serviceability targets and predictable fault handling in shared storage pools.

WD designs WD Gold drives around datacentre duty cycles, focusing on sustained operation, controlled error recovery, and compatibility across common SATA host bus adapters and RAID controllers. This engineering approach helps keep multi-drive systems stable under continuous workloads and standard maintenance events.

Key Applications:

• RAID arrays in rack servers
• Bulk storage in storage enclosures
• File repositories and NAS tiers
• Backup and archival staging
• Virtualization capacity datastores

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your needs and bulk order discount options for standardized WD4002FYYZ rollouts across server fleets and storage shelves.