WD Surveillance Hard Disk 4TB Purple SATA 3.5 Inch

Feature Specification Model Number WD43PURZ Formatted Capacity 4TB Form Factor 3.5-inch Advanced Format (AF) Yes Recording Technology CMR Interface SATA 6Gb/s RoHS Compliant Yes Cameras Supported Up to 64 HD Maximum Drive Bays Supported 16 Firmware Feature Name AllFrame Tarnish Resistant Components Yes RV Sensors Yes Interface Transfer Rate (max) 6 Gb/s Buffer to Host 180 MB/s Host to/from Drive (Sustained) 180 MB/s Cache (MB) 256 Load/Unload Cycles 300,000 Annualized Workload Rating 180TB/yr Non-recoverable Read Errors per Bits Read <1 in 1014 MTBF 1,000,000 hours Limited Warranty (years) 3