WD4000FYYZ WD RE 4TB SATA 64 MB 3.5" Server HDD

High-Performance 3.5-Inch Enterprise SATA HDD featuring CMR Consistency with the WD4000FYYZ

The WD4000FYYZ is a 3.5-inch enterprise HDD engineered for predictable behavior in server and NAS storage tiers where capacity density and stable write characteristics matter. Integrated into standard x86 CPU platforms and storage backplanes, the WD4000FYYZ supports SATA-based architectures that prioritize broad controller compatibility and straightforward lifecycle replacement in mixed-generation racks.

In systems where PCIe expansion is reserved for NVMe or network acceleration, the WD4000FYYZ enables scalable bulk storage via conventional SATA HBAs and RAID controllers while keeping lanes free for compute and I/O growth. Its CMR recording model is aligned to RAID parity workloads and sustained sequential writes, reducing variability that can impact rebuild windows. With 512n sector formatting and a 7200RPM design, the WD4000FYYZ fits nearline capacity pools, backup targets, and general-purpose datacenter expansion without changing the host memory architecture or platform topology.

Why Choose the WD4000FYYZ?

The WD4000FYYZ delivers an enterprise-focused balance of capacity per bay and operational consistency for 24x7 fleets. It is well-suited for dense chassis where predictable RAID behavior, controlled thermal profiles, and serviceable swap cycles define availability targets. Deploy the WD4000FYYZ to standardize SATA capacity tiers, simplify spares management, and scale arrays incrementally as demand grows.

WD designs the RE Series with a reliability-first engineering approach for continuous-duty environments, emphasizing sustained operation, controlled vibration tolerance in multi-drive enclosures, and qualification for common datacenter storage stacks. The WD4000FYYZ aligns with enterprise maintenance practices by supporting repeatable performance characteristics across large populations of drives.

Key Applications:

• RAID arrays requiring CMR write consistency
• Server and NAS bulk storage tiers
• Nearline capacity pools
• Backup and archive repositories
• General-purpose SATA HDD replacement and expansion

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage deployment plan and bulk order discount options that support standardized rollouts of WD4000FYYZ drives across racks and sites.