Western Digital Hard Drive WD Purple AV 3.5" 3TB 64MB SATA 6Gb/s 5400 RPM

Features:
• Engineered specifically for surveillance security systems.
• Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications.
• Prioritized write-operations for maximized surveillance performance.
• TLER & ATA streaming support.