WD PURPLE  HARD DRIVE 
Feature:
• Capacity up to 12TB
• Support for up to 64 cameras per drive
• AllFrame™ technology
• Up to 16 AI channels for Deep Learning analytics on AI-enabled NVRs (10TB & 12TB capacities)
• MTBF of up to 1.5 million hours
• 3-year limited warranty
 
Click here for the Datasheet