Western Digital Purple Surveillance 1TB Hard Disk Drive.

WD Purple Surveillance Hard Drive Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 cameras, WD Purple drives are optimized for surveillance systems. Features The Right Drive for the Job WD Purple drives have been engineered specifically for the extreme demands of high temperature, 24/7 surveillance systems. Performance You Can Trust From a worldwide leader in the storage industry, WD Purple is engineered for quality video playback when you need it most. Expand Your View to 64 WD Purple drives are optimized to support up to 64 cameras, giving you flexibility to upgrade or expand your security system. Seamless Integration With A Wide Range Of Industry-Leading Enclosures And Chipsets Supported, You're Sure To Find The Configuration And Compatibility That's Right For Your Nvr. Less Is More Low Power Consumption Is A Must In A High-Temperature, Always-On Surveillance Environment. Intelliseek Technology Helps Reduce Damaging Ambient Noise And Vibrations. Designed For Surveillance The WD Purple Drive Is Designed For Both Dvr And Nvr Security Systems, And Is Compatible With Many Of The The Leading Surveillance And Security Manufacturers. We Can Help You Find The Perfect Storage For Your System. 1 TB Capacity 1 TB Cache Memory Installed Size 64 MB Disk Speed (RPM) 5,400 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 0.99 lb 2 TB Capacity 2 TB Cache Memory Installed Size 64 MB Disk Speed (RPM) 5,400 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 0.99 lb 3 TB Capacity 3 TB Cache Memory Installed Size 64 MB Disk Speed (RPM) 5,400 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 1.10 lb 4 TB Capacity 4 TB Cache Memory Installed Size 64 MB Disk Speed (RPM) 5,400 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 1.15 lb 6 TB Capacity 6 TB Cache Memory Installed Size 64 MB Disk Speed (RPM) 5,700 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 1.15 lb 8 TB Capacity 8 TB Cache Memory Installed Size 256 MB Disk Speed (RPM) 7,200 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 1.15 lb 10 TB Capacity 10 TB Cache Memory Installed Size 256 MB Disk Speed (RPM) 7,200 rpm Hard Disk Form Factor 3.5 in Hardware Connectivity SATA 6.0 Gb/s Dimensions (L x W x H) 5.79" x 4" x 1.03" Compatibility WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays. Item Weight 1.15 lb