WD85PURZ-8TB WD Purple Surveillance Hard Drive - 8TB Product Specifications General Specifications Capacity 8TB Form Factor 3.5-Inch Connector SATA Interface SATA Transfer Rate up to 215MB/s Disk Speed (RPM) 5640 RPM Recording Technology CMR Cache Size 256MB Warranty 3-Year Limited Warranty Dimensions (L x W x H) 5.79" x 4" x 1.03" Weight 720gms Model Number WD85PURZ Operating Temperature 0°C to 65°C Non-Operating Temperature -40°C to 70°C Product Features Feature 1 Engineered for mainstream surveillance systems Feature 2 WD AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications Feature 3 Supports up to 180TB/yr workload rate and up to 16 bays Compatibility HD Cameras Support Up to 64 HD cameras Drive Bays Up to 16 drive bays Firmware Technology AllFrame firmware technology

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DS120HKAI-VX1 12TB SATA Hard DriveHigh-performance enterprise-grade hard drive designed for AI and surveillance applications with 24/7 reliability and exceptional workload capacity.Specifications Category Specification Value General Interface SATA Formatted Capacity 12 TB Performance Interface Speed 6.0 Gb/s, 3.0 Gb/s, 1.5 Gb/s Rotation Speed 7200 RPM Buffer Size 512 MB Max Data Transfer Speed 260 MB/s (Sustained, Typ.) Power Supply Voltage 12V ± 10% / 5V ± 5% Operating (Typ.) 8.08 W Active Idle (Typ.) 4.16 W Standby (Typ.) 0.43 W Acoustics Low Power Idle (Typ.) 31 dB Environmental Operating Temperature (Ambient) 5°C to 55°C Operating Temperature (Enclosure) 5°C to 60°C Non-Operating Temperature -40°C to 70°C Operating Humidity 5% to 90% RH Operating Altitude -305m to 3048m Non-Operating Altitude -305m to 12,192m Shock & Vibration Operating Shock 490 m/s² (50G, 2ms) Non-Operating Shock 1960 m/s² (200G, 2ms) Operating Vibration 7.35 m/s² (0.75G, 5-300Hz) / 2.45 m/s² (0.25G, 300-500Hz) Reliability MTTF / AFR 2,500,000 hours / 0.35% Non-recoverable Error Rate 10 per 10¹⁶ bits read Load/Unload Cycles 600,000 times Availability 24/7 Operation Rated Annual Workload 550 TB/year Physical Width 101.85 mm Height (Max) 26.1 mm Length (Max) 147.0 mm Weight (Max) 720 g Key Features Enterprise-grade reliability with 2.5 million hours MTTF Ultra-low 0.35% annualized failure rate High-speed 7200 RPM for superior performance Large 512MB cache buffer for enhanced data handling Exceptional workload capacity up to 550TB/year 24/7 operation capability for continuous use AI and surveillance optimized Wide operating temperature range (5°C to 55°C)

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High-Performance Surveillance Hard DrivesProfessional-grade SATA hard drives designed for 24/7 surveillance systems, supporting up to 32 high-definition camera streams with reliable performance and durability.Technical Specifications Category Specification DS40HKVS-VX1 DS20HKVS-VX1 Basic Interface SATA Formatted Capacity 4 TB 2 TB Performance Interface Speed 6.0 Gb/s, 3.0 Gb/s, 1.5 Gb/s Rotation Speed 5400 rpm Buffer Size 128 MB Max Data Transfer Speed (Sustained) 176.4 MB/s Data Block Logical Data Block Length HOST: 512 B, DISK: 4096 B Supply Voltage Allowable Voltage 12 V ± 10% / 5 V ± 5% Power Consumption Operating (Typ.) 4.11 W 4.01 W Active Idle (Typ.) 2.36 W 2.08 W Standby (Typ.) 0.20 W 0.31 W Acoustics Low Power Idle (Typ.) 22 dB 21 dB Environmental Ambient Temp (Operating) 0°C to 60°C Ambient Temp (Non-Operating) -40°C to 70°C Relative Humidity (Operating) 5% to 90% R.H. Altitude (Operating) -305m to 3048m Shock (Operating) 686 m/s² (70G, 2ms) Reliability MTTF / AFR 1,000,000 hours / 0.88% Non-recoverable Error Rate 1 error per 10¹⁴ bits read Availability 24 hours/day, 7 days/week Rated Annual Workload 180 TB/year Mechanical Width 101.6 mm ± 0.25 mm Height (Max) 26.1 mm Length (Max) 147.0 mm Weight (Max) 650 g 440 g Key Features Supports up to 32 cameras high-definition streams 128 MB Cache buffer helps smooth video recording and guards against frame drops Designed for 24x7 operation Annual workload rating of 180 TB/year MTTF of 1M hours Industry-standard 3.5-inch form-factor and SATA interface Advanced Format 512e Sector Technology

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High-Performance 6TB Surveillance Hard DriveProfessional-grade SATA hard drive designed for 24/7 surveillance systems, supporting up to 32 high-definition camera streams with reliable performance and durability. Features 256MB cache buffer for smooth video recording.Technical Specifications Category Specification Value Basic Interface SATA Formatted Capacity 6 TB Performance Interface Speed 6.0 Gb/s, 3.0 Gb/s, 1.5 Gb/s Rotation Speed 5400 rpm Buffer Size 256 MB Maximum Data Transfer Speed (Sustained) 176.4 MB/s Logical Data Block Length HOST: 512 B, DISK: 4096 B Supply Voltage Allowable Voltage 12 V ± 10% / 5 V ± 5% Power Consumption Operating (Typ.) 4.84 W Active Idle (Typ.) 2.81 W Standby (Typ.) 0.36 W Acoustics Low Power Idle (Typ.) 24 dB Environmental Limits Item Specification Ambient Temperature (Operating) 0°C to 60°C (No condensation) Ambient Temperature (Non-Operating) -40°C to 70°C (No condensation) Enclosure Surface Temperature (Operating) 0°C to 70°C (No condensation) Relative Humidity (Operating) 5% to 90% R.H. (No condensation) Relative Humidity (Non-Operating) 5% to 95% R.H. (No condensation) Altitude (Operating) -305m to 3048m Altitude (Non-Operating) -305m to 12192m Shock (Operating) 686 m/s² (70G, 2ms duration) Shock (Non-Operating) 2940 m/s² (300G, 2ms duration) Vibration (Operating) 4.90 m/s² (0.50G, 5-350Hz) / 2.45 m/s² (0.25G, 350-500Hz) Vibration (Non-Operating) 29.4 m/s² (3.0G, 5-500Hz) Reliability Item Specification MTTF / AFR 1,000,000 hours / 0.88% Non-recoverable Error Rate 1 error per 10¹⁴ bits read Load / Unload 600,000 times Availability 24 hours/day, 7 days/week Rated Annual Workload 180 TB/year (R/W) Mechanical Specifications Item Specification Width 101.6 mm ± 0.25 mm Height (Max) 26.1 mm Length (Max) 147.0 mm Weight (Max) 680 g Key Features 6TB storage capacity for extended surveillance recording 256MB cache buffer for superior performance and smooth video recording Supports up to 32 high-definition camera streams Designed for 24x7 continuous operation Annual workload rating of 180TB/year MTTF of 1 million hours for exceptional reliability Industry-standard 3.5-inch form-factor with SATA interface Advanced Format 512e Sector Technology Optimized for surveillance and security systems

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High-Performance Surveillance Hard Drives Professional-grade SATA hard drives designed for 24/7 surveillance systems, supporting up to 32 high-definition camera streams with reliable performance and durability. Technical Specifications Category Specification DS40HKVS-VX1 DS20HKVS-VX1 Basic Interface SATA Formatted Capacity 4 TB 2 TB Performance Interface Speed 6.0 Gb/s, 3.0 Gb/s, 1.5 Gb/s Rotation Speed 5400 rpm Buffer Size 128 MB Max Data Transfer Speed (Sustained) 176.4 MB/s Data Block Logical Data Block Length HOST: 512 B, DISK: 4096 B Supply Voltage Allowable Voltage 12 V ± 10% / 5 V ± 5% Power Consumption Operating (Typ.) 4.11 W 4.01 W Active Idle (Typ.) 2.36 W 2.08 W Standby (Typ.) 0.20 W 0.31 W Acoustics Low Power Idle (Typ.) 22 dB 21 dB Environmental Ambient Temp (Operating) 0°C to 60°C Ambient Temp (Non-Operating) -40°C to 70°C Relative Humidity (Operating) 5% to 90% R.H. Altitude (Operating) -305m to 3048m Shock (Operating) 686 m/s² (70G, 2ms) Reliability MTTF / AFR 1,000,000 hours / 0.88% Non-recoverable Error Rate 1 error per 10¹⁴ bits read Availability 24 hours/day, 7 days/week Rated Annual Workload 180 TB/year Mechanical Width 101.6 mm ± 0.25 mm Height (Max) 26.1 mm Length (Max) 147.0 mm Weight (Max) 650 g 440 g Key Features Supports up to 32 cameras high-definition streams 128 MB Cache buffer helps smooth video recording and guards against frame drops Designed for 24x7 operation Annual workload rating of 180 TB/year MTTF of 1M hours Industry-standard 3.5-inch form-factor and SATA interface Advanced Format 512e Sector Technology

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