2

WD Purple™

Specifications

1

1MB = 1 million bytes, 1GB = 1 billion bytes, and 1TB = 1 trillion bytes. Actual user capacity may be less

depending on operating environment.

2

Not all products may be available in all regions of the world.

3

WD hard drive products manufactured and sold worldwide after June 8, 2011, meet or exceed Restriction

of Hazardous Substances (RoHS) compliance requirements as mandated by the RoHS Directive

2011/65/EU.

4

Single stream at 3.2Mbps (1080p, H.265, 25 fps) for (WD22PURZ, WD33PURZ, WD42PURZ,

WD43PURZ, WD60PURZ, WD62PURZ, WD63PURZ, WD64PURZ, WD84PURZ) and 2.6Mbps (720p,

H.265, 25 fps) for (WD10PURZ, WD20PURZ, WD30PURZ, WD40PURZ.) Results may vary depending

on camera resolution, file format, frames per second, software, system settings, video quality, and other

factors.

5

1TB through 3TB (WD30PURZ) support up to eight bays; 3TB (WD33PURZ) and 4TB and above

support up to 16 bays.

6

Tarnish resistant components for capacities 3TB (WD33PURZ) and 4TB and higher.

7

Gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 6 Gb/s transfer rate

calculated according to the Serial ATA specification published by the SATA-IO organization as of the

date of this specification sheet. Visit www.sata-io.org for details.

8

1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon

host device, usage conditions, drive capacity, and other factors.

9

Controlled unload at ambient condition.

10

Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload

Rate is annualized (TB transferred x (8760 / recorded power-on hours)). Workload Rate will vary

depending on your hardware and software components and configurations.

11

No non-recoverable errors during operating tests or after non-operating tests.

12

MTBF specifications are based on a sample population and are estimated by statistical measurements

and acceleration algorithms under typical operating conditions: workload of 90TB/year and drive

temperature of 40°C. Derating of MTBF will occur above these parameters, up to 65°C drive

temperature. MTBF does not predict an individual drive’s reliability and does not constitute a warranty.

13

See support.wdc.com/warranty for regional specific warranty details.

14

Power measurements at room-ambient temperature.

15

On the base casting.

16

Sound power level.

8TB

6TB

6TB

6TB

6TB

Model Number2

WD84PURZ

WD64PURZ

WD63PURZ

WD62PURZ

WD60PURZ

Formatted capacity1

8TB

6TB

6TB

6TB

6TB

Form factor

3.5-inch

3.5-inch

3.5-inch

3.5-inch

3.5-inch

Advanced Format (AF)

Yes

Yes

Yes

Yes

Yes

Recording Technology

CMR

CMR

CMR

CMR

CMR

RoHS compliant3

Yes

Yes

Yes

Yes

Yes

Product Features

Cameras supported4

Up to 64 HD

Up to 64 HD

Up to 64 HD

Up to 64 HD

Up to 64 HD

Drive Bays Supported

16

16

16

16

16

Firmware Feature Name

AllFrame

AllFrame

AllFrame

AllFrame

AllFrame

Tarnish resistant components

Yes

Yes

Yes

Yes

Yes

Performance

Interface transfer rate (max)

Buffer to host7

Host to/from drive (sustained)8

6 Gb/s

194 MB/s

6 Gb/s

180MB/s

6 Gb/s

175MB/s

6 Gb/s

185 MB/s

6 Gb/s

175 MB/s

Cache (MB)1

128

256

256

128

64

Reliability/Data Integrity

Load/unload cycles9

300,000

300,000

300,000

300,000

300,000

Annualized workload rating10

180TB/yr

180TB/yr

180TB/yr

180TB/yr

180TB/yr

Non-recoverable read errors per bits read11

<1 in 10^14

<1 in 10^14

<1 in 10^14

<1 in 10^14

<1 in 10^14

MTBF12

1,000,000

1,000,000

1,000,000

1,000,000

1,000,000

Limited warranty (years)13

3

3

3

3

3

Power Management14

Average power requirements (W)

Read/Write

Idle

Standby and Sleep

6.2

5.5

0.4

4.7

4.3

0.3

4.6

3.7

0.3

6.2

5.5

0.4

5.3

4.9

0.4

Environmental Specifications

Temperature (°C)

Operating15

Non-operating

0 to 65

-40 to 70

0 to 65

-40 to 70

0 to 65

-40 to 70

0 to 65

-40 to 70

0 to 65

-40 to 70

Shock (Gs)

Operating (2 ms, read/write)

Operating (2 ms, read)

Non-operating (2 ms)

30

65

250

30

65

250

30

65

250

30

65

250

30

65

250

Acoustics (dBA)16

Idle

Seek (average)

25

30

23

27

23

27

25

30

25

28

Physical Dimensions

Height (in./mm, max)

1.028/26.1

1.028/26.1

1.028/26.1

1.028/26.1

1.028/26.1

Length (in./mm, max)

5.787/147

5.787/147

5.787/147

5.787/147

5.787/147

Width (in./mm, ± .01 in.)

4/101.6

4/101.6

4/101.6

4/101.6

4/101.6

Weight (lb/kg, ± 10%)

1.58/0.72

1.26/0.57

1.26/0.57

1.58/0.72

1.65/0.75