Western Digital 1TB Purple Surveillance Hard Drive (WD10PURX-78P6ZYO)

• 1TB Storage Capacity
• 3.5″ Form Factor
• 6 Gb/s Data Transfer Rate
• 64MB Cache
• IntelliPower Rotational Speed
• 300,000 Load/Unload Cycles
• Surveillance Class Storage
• Supports 32 HD Surveillance Cameras
• 1 Million Hours MTBF
• Windows and Mac Compatible