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WD Ultrastar DC HC555
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Main Specifications
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Product Description
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WD Ultrastar DC HC555 - hard drive - Data Center - 20 TB - SAS 12Gb/s
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Type
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Hard drive - internal
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Capacity
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20 TB
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Form Factor
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3.5"
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Interface
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SAS 12Gb/s
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Data Transfer Rate
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1.2 GBps
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Buffer Size
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512 MB
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Spindle Speed
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7200 rpm
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Drive Class
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Data Center
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Features
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Advanced format 512e, advanced format 4Kn, 24x7 continuous operation, Triple State Actuator (TSA), Dynamic fly height technology, HelioSeal, Rotational Vibration (RV) sensor, Conventional magnetic recording (CMR), Energy-assisted PMR (ePMR)
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Dimensions (WxDxH)
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4 in x 5.8 in x 1 in
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Weight
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24.34 oz
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Manufacturer Warranty
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5-year warranty
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General
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Device Type
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Hard drive - internal
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Capacity
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20 TB
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Form Factor
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3.5"
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Interface
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SAS 12Gb/s
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Buffer Size
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512 MB
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Features
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Advanced format 512e, advanced format 4Kn, 24x7 continuous operation, Triple State Actuator (TSA), Dynamic fly height technology, HelioSeal, Rotational Vibration (RV) sensor, Conventional magnetic recording (CMR), Energy-assisted PMR (ePMR)
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Width
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4 in
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Depth
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5.8 in
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Height
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1 in
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Weight
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24.34 oz
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Manufacturer Warranty
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Service & Support
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Limited warranty - 5 years
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Miscellaneous
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Compliant Standards
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BSMI, ICES-003, NMB-003, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB Scheme, TUV, UL, Directive 2015/863, EU Directive 2011/65/EU
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Power
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Power Consumption
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9.2 Watt (typical) ¦ 5.7 Watt (idle)
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Environmental Parameters
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Min Operating Temperature
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41 °F
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Max Operating Temperature
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140 °F
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Min Storage Temperature
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-40 °F
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Max Storage Temperature
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158 °F
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Shock Tolerance (operating)
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50 g @ 2 ms half-sine wave
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Shock Tolerance (non-operating)
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250 g @ half-sine wave
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Vibration Tolerance (operating)
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0.67 g @ 5-500 Hz
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Vibration Tolerance (non-operating)
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1.04 g @ 2-200 Hz
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Sound Emission
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32 dBA
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Performance
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Drive Class
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Data Center
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Drive Transfer Rate
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1.2 GBps (external)
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Internal Data Rate
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285 MBps
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Average Latency
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4.16 ms
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Spindle Speed
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7200 rpm
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Reliability
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MTBF
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2,500,000 hours
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24x7 Operation
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Yes
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Non-Recoverable Errors
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1 per 10^15
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Load / Unload Cycles
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600,000
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Software & System Requirements
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OS Required
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Microsoft Windows, Linux, Microsoft Windows Server
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Expansion & Connectivity
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Interfaces
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1 x SAS 12 Gb/s
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Compatible Bay
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3.5"
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