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Product Comparison

Technical Specifications

Only show the difference

Feature

Brand: Western Digital|SKU: WD20EARZ

WD Blue WD20EARZ - Hard drive - 2 TB - internal - 3.5" - SATA 6Gb/s - 5400 rpm - buffer: 64 MB

£63.66

Stock: 0

Brand: Western Digital|SKU: 0F48155

WD Ultrastar DC HC570 - Hard drive - 22 TB - internal - 3.5" - SATA 6Gb/s - 7200 rpm - buffer: 512 MB - for Intel Next Unit of Computing 13 Extreme Kit - NUC13RNGi7

£468.59

Stock: 2

Brand: Western Digital|SKU: 0F38652

WD Ultrastar DC HC560 - Hard drive - 20 TB - internal - 3.5" - SAS 12Gb/s - 7200 rpm - buffer: 512 MB

£437.64

Stock: 3

Brand: Western Digital|SKU: 0F65672

WD Ultrastar DC HC590 0F65672 - hard drive - Data Centre - 26 TB - SATA 6Gb/s

£559.99

Stock: 8

Brand: Western Digital|SKU: 0F62796

WD Ultrastar DC HC580 WUH722424ALE6L4 - hard drive - 24 TB - SATA 6Gb/s

£487.09

Stock: 2

General

Buffer Size

—

512 MB

Capacity

—

26 TB

24 TB

Depth

—

146.7 mm

147 mm

Device Type

—

Hard drive - internal

Features

—

HelioSeal, advanced format 512e, advanced format 4Kn, OptiNAND technology, ArmorCache Technology, 24x7 availability, Energy-Assisted Magnetic Recording (EAMR), Rotational Vibration Safeguard (RVS), Dynamic fly height technology, Conventional magnetic recording (CMR)

HelioSeal, advanced format 512e, advanced format 4Kn, OptiNAND technology, ArmorCache Technology, 24x7 availability, Energy-Assisted Magnetic Recording (EAMR), Triple State Actuator (TSA), Conventional magnetic recording (CMR), Massive Scale Out (MSO)

Form Factor

—

3.5"

Height

—

26.1 mm

Interface

—

SATA 6Gb/s

Weight

—

670 g

Width

—

101.6 mm

Power

Power Consumption

—

8.4 Watt (random read/write), 5.6 Watt (idle)

8.5 Watt (random read/write), 5.5 Watt (idle)

Miscellaneous

Compliant Standards

—

RoHS 2011/65/EU, RoHS 2015/863/EU, BSMI, ICES-003, NMB-003, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB Scheme, TUV, UL

Reliability

24x7 Operation

—

Yes

Load / Unload Cycles

—

600,000

MTBF

—

2,500,000 hours

2,000,000 hours

Non-Recoverable Errors

—

1 per 10^15

Performance

Average Latency

—

4.16 ms

Drive Class

—

Data Centre

—

Drive Transfer Rate

—

600 MBps (external)

Internal Data Rate

—

302 MBps

298 MBps

Spindle Speed

—

7200 rpm

Connections & Expansion

Compatible Bay

—

3.5"

Interfaces

—

1 x SATA 6 Gb/s

Environmental Parameters

Max Operating Temperature

—

60 °C

Max Storage Temperature

—

70 °C

Min Operating Temperature

—

5 °C

Min Storage Temperature

—

-40 °C

Shock Tolerance (non-operating)

—

200 g @ half-sine wave

Shock Tolerance (operating)

—

40 g @ 2 ms half-sine wave

Vibration Tolerance (non-operating)

—

1.04 gRMS @ 2-200 Hz

Vibration Tolerance (operating)

—

0.7 gRMS @ 5-500 Hz

Software / System Requirements

OS Required

—

Linux, Microsoft Windows Server, Microsoft Windows

Manufacturer Warranty

Service & Support

—

Limited warranty - 5 years