Product Name: Discount CCTV Hard Drive 4tb 3.5 Inch SATA DVR 4000GB Refurbished HDD Interface Rate: 4000MB/s SSD Cache: 4GB Cache: 1024MB Size: 3.5 Interface Type: SATA3 Installation: External Rotationl Speed: 7200rpm Application: Laptop, Desktop, Server Type: Portable Hard Disk Capacity: 4tb Trademark: WD Transport Package: Carton Specification: 3.5INCH Origin: Malaysia HS Code: 8471701000 Product Description Discount CCTV hard drive 4tb 3.5 inch SATA DVR 4000gb refurbished hddSpecificationsStandard Model NumbersST4000VX007SkyHawk Health Management IncludedYesInterfaceSATA 6Gb/sFeatures and PerformanceDrive Bays Supported8+Cameras SupportedUp to 64Max. Sustained Transfer Rate OD (MB/s)210MB/sCache (MB)64Reliability/Data IntegrityTarnish ResistantYesLoad/Unload Cycles300,000Nonrecoverable Read Errors per Bits Read, Max1 per 10E14Power-On Hours per Year (24×7)8760Workload Rate Limit (WRL)180MTBF1,000,000hrPower ManagementStartup Current, Typical (12V, A)1.8Average Operating Power (W)5.5WIdle Average (W)3.2WStandby Mode/Sleep Mode, Typical (W)0.25/0.25Voltage Tolerance (5V)±5%Voltage Tolerance (12V)±10%Environmental/TemperatureOperating (ambient, min °C)0Operating (drive case, max °C)70Nonoperating (ambient, min °C)-40PhysicalHeight (mm/in, max)26.11mm/1.028inWidth (mm/in, max)101.85mm/4.01inDepth (mm/in, max)146.99mm/5.787inWeight (g/lb635g/1.40lbQuick DetailsProducts Status:Stock, StockApplication:ServerType:InternalStyle:HDDHDD Capacity:≥ 2TBSize:3.5"Interface Type:SATABrand Name:Seagate / WDModel Number:4TBPlace of Origin:Guangdong, China (Mainland), Guangdong ChinaModel:4TBInterface:SATA 6Gb/sDrive Bays Supported:8+Cache (MB):64Tarnish Resistant:YesLoad/Unload Cycles:300,000Workload Rate Limit:180Average Operating Power (W):5.5WPackaging & DeliverySelling Units:Single itemSingle package size:30x30X5 cmSingle gross weight:3.0 kgPackage Type:exporting cartonLead Time:Quantity(Piece)1 - 100>100Est. Time(day)5To be negotiated