WD101EFAX WD Red Plus 10TB SATA 256 MB 3.5" Server HDD

High-Capacity 3.5in NAS HDD featuring CMR RAID consistency with the WD101EFAX

The WD101EFAX is a 10TB 3.5in SATA 6Gb/s internal HDD engineered for always-on NAS storage where predictable write behavior matters more than peak burst metrics. By using CMR recording, the WD101EFAX sustains consistent rebuild and resync performance in multi-bay RAID volumes, reducing operational risk during degraded-array events in SMB and ROBO deployments.

Designed to integrate cleanly with modern NAS host platforms, the WD101EFAX aligns with typical x86 NAS CPU generations and memory architectures by offloading bulk capacity to dependable rotational media, preserving system memory for caching and metadata services. The SATA 6Gb/s single-port interface maps directly to common HBA and chipset storage lanes, keeping PCIe resources available for higher-value expansion such as 10/25GbE NICs or NVMe cache tiers, while 4Kn/512e flexibility supports both modern and legacy NAS firmware stacks.

Why Choose the WD101EFAX?

The WD101EFAX provides a density-to-reliability profile optimized for 24x7 NAS arrays: 10TB per bay simplifies capacity scaling, while CMR helps maintain deterministic performance under mixed read/write and RAID maintenance workloads. With a 1,000,000-hour MTBF rating and a 7200 RPM design supported by 256MB cache, the WD101EFAX is suited for consolidated file services that must remain responsive during backups, snapshots, and rebuilds.

WD designs Red Plus drives with an engineering focus on sustained duty cycles, workload consistency, and compatibility across widely deployed NAS platforms. This approach supports enterprise-adjacent operational standards where predictable behavior, qualification discipline, and long service intervals are required for small datacentre and edge storage.

Key Applications:

• SMB and ROBO NAS file services
• 24x7 RAID arrays and rebuild operations
• Backup targets and backup repositories
• Media libraries and content repositories
• Archive and cold-data capacity tiers

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage rollout plans and bulk order discounts for multi-drive NAS builds, enabling cost-efficient standardization of WD101EFAX capacity across sites and arrays.