Western Digital WD Purple 4TB 3.5-Inch SATA Surveillance HDD – 2 Years Warranty
- 4TB Surveillance HDD Designed for 24/7 DVR & NVR Recording
- AllFrame™ Technology for Improved Video Recording Performance
- Supports Up to 64 HD Cameras in Compatible Surveillance Systems
- Backward-Compatible SATA Interface for Broad System Support
Western Digital WD Purple 4TB 3.5-Inch SATA Surveillance HDD – 2 Years Warranty
- 4TB 3.5-Inch Surveillance HDD Purpose-Built for DVR & NVR Systems
- Designed for Reliable 24/7 Continuous Video Surveillance Recording
- AllFrame™ Technology Helps Optimize Surveillance Recording Performance
- Supports Up to 64 HD Cameras for Multi-Camera Security Installations
Western Digital WD Red 4TB 3.5-Inch SATA NAS HDD 5400 RPM 128MB Cache – 2 Years Warranty
- 4TB 3.5-Inch Internal HDD Designed for NAS Storage Environments
- 5400 RPM Performance with 128MB Cache & Transfer Rate Up to 175MB/s
- NASware™ Technology for Improved Compatibility, Performance & Reliability
- Designed for 24/7 Operation in Small to Medium NAS & RAID Storage Systems