product_title: WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURZ (Renewed)
product_description: SATA - 5400rpm - 64 MB Buffer
product_bullet_point: This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  Engineered specifically for surveillance security systems
  Supports up to 180 TB/yr. workload rate
  Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications
  Prioritized write-operations for maximized surveillance performance
product_brand: Western Digital
product_text: WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURZ (Renewed)
  Western Digital
  New Generation Surveillance HDD
  SATA - 5400rpm - 64 MB Buffer
  This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  Engineered specifically for surveillance security systems
  Supports up to 180 TB/yr. workload rate
  Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications
  Prioritized write-operations for maximized surveillance performance