WD Purple WD64PURZ 6 TB Hard Drive - 3.5" Internal - SATA - PurpleMeet the WD Purple WD64PURZ 6 TB hard drive, a purpose built storage solution designed for security systems that demand reliability, durability, and scalable capacity. Built to handle continuous, 24x7 operation, this 3. 5" internal SATA drive delivers robust performance for DVR and NVR setups, whether youre protecting a single storefront or managing a sprawling surveillance network. With 6 TB of storage, you can capture, retain, and access weeks or