Western Digital Caviar Green 3TB (WD30EZRS-11J99B0) is a 3.5-inch internal HDD designed for capacity-focused storage applications in desktop and low-power environments. The drive delivers 5400 RPM spindle speed with 3GB/s SATA interface and 64MB cache, optimizing for sequential throughput over random access performance. Typical use cases include archival storage, media libraries, backup destinations, and secondary storage in small office or workgroup NAS systems where power consumption is a consideration. The Caviar Green line emphasizes efficiency and cost-per-gigabyte value rather than performance-intensive workloads. Compatible with standard 3.5-inch mounting brackets and SATA controller interfaces found in most servers, NAS appliances, and external enclosures.
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