WD Gold 4TB Enterprise HDD — 7200RPM 256MB SATA

The Western Digital Gold 4TB Enterprise Class Hard Drive (WD4004FRYZ) delivers datacenter-grade reliability and performance for demanding storage applications. Engineered for 24/7 operation in enterprise environments, this drive features a 2 million hour MTBF rating and an exceptionally low 0.44% annualized failure rate, making it an ideal choice for UniFi Protect NVR systems, network-attached storage, and business-critical data applications where uptime is paramount.

• 7200 RPM performance with 256MB cache delivers sustained transfer rates up to 267 MB/s for smooth video recording and fast data access
• Enterprise-grade durability rated for 600,000 load/unload cycles ensures longevity in always-on surveillance and server environments
• 5-year limited warranty provides long-term protection and peace of mind for professional deployments
• Power efficient design consumes just 7.0W operational and 5.8W idle, reducing operating costs in multi-drive configurations
• Wide operating temperature range (5°C to 60°C) ensures reliable performance in varied installation environments

This drive’s SATA 6 Gb/s interface and 512e sector format provide broad compatibility with modern storage systems, while its robust construction handles the constant read/write demands of continuous video surveillance recording. Whether you’re building a UniFi Protect system with multiple 4K cameras, deploying a small business file server, or creating a RAID array for data redundancy, the WD Gold series offers the reliability and performance that IT professionals demand without the complexity of SAS configurations.