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Specifications
1
Model number
Interface
Formatted capacity
User sectors per drive
Advanced Format (AF)
SATA latching connector
Form factor
2
RoHS compliant
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
Cache (MB)
Rotational speed (RPM)
Reliability/Data Integrity
3
Load/unload cycles
Non-recoverable read errors
per bits read
4
Limited warranty (years)
Power Management
12VDC (A, peak)
Average power requirements (W)
Read/write
Idle
Standby
Sleep
5
Environmental Specifications
Temperature (°C)
Operating
Non-operating
Shock (Gs)
Operating (2 ms, read)
Operating (2 ms, read/write)
Non-operating (1 ms)
6
Average acoustics (dBA)
Idle mode
Performance seek mode
Quiet seek mode
Physical Dimensions
Height (in./mm, max)
Length (in./mm, max)
Width (in./mm, ± .01 in.)
Weight (lb./kg, ± 10%)
1
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576
bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 3 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.
2
WD hard drive products manufactured and sold worldwide after June 1, 2006, meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the European Union for electrical and electronic products. The RoHS Directive 2002/95/EC of the
European Parliament, which is effective in the EU beginning July 1, 2006, aims to protect human health and the environment by restricting the use of certain hazardous substances in new equipment, and consists of restrictions on lead, mercury, cadmium, and other substances.
3
Controlled unload at ambient condition
4
The term of the limited warranty may vary by region. Visit support.wdc.com/warranty for details.
5
No non-recoverable errors during operating tests or after non-operating tests.
6
Sound power level.
3 TB
3 TB
WD30EZRX
WD30EZRSDTL
SATA 6 Gb/s
SATA 3 Gb/s
3,000,592 MB
3,000,592 MB
5,860,533,168
5,860,533,168
Yes
Yes
Yes
Yes
3.5-inch
3.5-inch
Yes
Yes
6 Gb/s
3 Gb/s
123 MB/s
123 MB/s
64
64
IntelliPower
IntelliPower
300,000
300,000
<1 in 10
14
<1 in 10
14
3
3
1.78
1.78
6
6
5.5
5.5
0.8
0.8
0.8
0.8
0 to 60
0 to 60
-40 to 70
-40 to 70
30
30
65
65
250
250
24
24
29
29
25
25
1.028/25.4
1.028/25.4
5.787/147
5.787/147
4/101.6
4/101.6
1.61/0.73
1.61/0.73
WD Caviar Green
2.5 TB
2.5 TB
WD25EZRX
WD25EZRSDTL
SATA 6 Gb/s
SATA 3 Gb/s
2,500,495 MB
2,500,495 MB
4,883,781,168
4,883,781,168
Yes
Yes
Yes
Yes
3.5-inch
3.5-inch
Yes
Yes
6 Gb/s
3 Gb/s
123 MB/s
123 MB/s
64
64
IntelliPower
IntelliPower
300,000
300,000
<1 in 10
14
<1 in 10
14
3
3
1.78
1.78
6
6
5.5
5.5
0.8
0.8
0.8
0.8
0 to 60
0 to 60
-40 to 70
-40 to 70
30
30
65
65
250
250
24
24
29
29
25
25
1.028/25.4
1.028/25.4
5.787/147
5.787/147
4/101.6
4/101.6
1.61/0.73
1.61/0.73
-2-
2 TB
2 TB
WD20EARX
WD20EARS
SATA 6Gb/s
SATA 3 Gb/s
2,000,398 MB
2,000,398 MB
3,907,029,168
3,907,029,168
Yes
Yes
Yes
Yes
3.5-inch
3.5-inch
Yes
Yes
6 Gb/s
3 Gb/s
110 MB/s
110 MB/s
64
64
IntelliPower
IntelliPower
300,000
300,000
<1 in 10
14
<1 in 10
14
3
3
1.75
1.75
5.3
5.3
3.3
3.3
0.7
0.7
0.7
0.7
0 to 60
0 to 60
-40 to 70
-40 to 70
30
30
65
65
250
250
24
24
29
29
25
25
1.028/25.4
1.028/25.4
5.787/147
5.787/147
4/101.6
4/101.6
1.40/0.64
1.40/0.64
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