Western Digital WD Purple SATA 4TB 3.5”

Specifications

Model number

WD40PURZ

Formatted capacity

4 TB

Form factor

3.5-inch

Advanced Format (AF)

Yes

RoHS compliant⁶

Yes

Performance

Data transfer rate (max)⁵

 Buffer to host

6 Gb/s

Host to/from drive (sustained)

150 MB/s

Cache (MB)⁵

64

Performance class

5400 RPM Class

Reliability/Data Integrity

Load/unload cycles⁷

300,000

Non-recoverable read errors per bits read

<10 in 10¹⁴

Limited warranty (years)⁸

3

Power Management

Average power requirements (W)

Read/Write

5.1

Idle

4.5

Standby and Sleep

0.4

Environmental Specifications⁹

Temperature (°C, on the base casting)

Operating

0 to 65

Non-operating

-40 to 70

Shock (Gs)

Operating (2 ms, read/write)

30

Operating (2 ms, read)

65

Non-operating (2 ms)

250

Acoustics (dBA)¹⁰

 Idle

25

Seek (average)

26

Physical  Dimensions

Height (in./mm, max)

1.028/26.1

Length (in./mm, max)

5.787/147

Width (in./mm, ± .01 in.)

4/101.6

Weight (lb./kg, ± 10%)

1.50/0.68