WD Purple 4TB Surveillance Hard Drive - SATA 3.5" STEEL Noise Level ：28

Noise Level ：28

Unyielding power delivery and robust thermal management form the indelible tenets of its creed

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WD Purple 4TB Surveillance Hard Drive - SATA 3.5" STEEL Noise Level ：28Engineered specifically for surveillance security systems Reduced video frame loss Prioritized write operations for maximized surveillance performance TLER & ATA streaming support SATA 6 Gb s interface and 64MB cache WD Purple 4TB Surveillance Hard Drive SATA 3. 5" Price in Pakistan Engineered for mainstream surveillance systems WD AllFrame technology delivers optimizations for write intensive, low bit rate, high stream count workloads typical to