Datasheet
WD Green
™
-2-
Specifications
1
3 TB 2 TB 2 TB
Model number WD30EZRX WD20EARX WD20EZRX
Interface SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
Formatted capacity 3,000,592 MB 2,000,398 MB 2,000,398 MB
User sectors per drive 5,860,533,168 3,907,029,168 3,907,029,168
Advanced Format (AF) Yes Yes Yes
SATA latching connector Yes Yes Yes
Form factor 3.5-inch 3.5-inch 3.5-inch
RoHS compliant
2
Yes Yes Ye s
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
6 Gb/s
123 MB/s
6 Gb/s
110 MB/s
6 Gb/s
123 MB/s
Cache (MB) 64 64 64
Rotational speed (RPM) IntelliPower IntelliPower IntelliPower
Reliability/Data Integrity
Load/unload cycles
3
300,000 300,000 300,000
Non-recoverable read errors
per bits read
<1 in 10
14
<1 in 10
14
<1 in 10
14
Limited warranty (years)
4
222
Power Management
12VDC (A, peak) 1.78 1.75 1.78
Average power requirements (W)
Read/write
Idle
Standby
Sleep
6
5.5
0.8
0.8
5.3
3.3
0.7
0.7
6
5.5
0.8
0.8
Environmental Specifications
5
Temperature (°C)
Operating
Non-operating
0 to 60
-40 to 70
0 to 60
-40 to 70
0 to 60
-40 to 70
Shock (Gs)
Operating (2 ms, read)
Operating (2 ms, read/write)
Non-operating (1 ms)
30
65
250
30
65
250
30
65
250
Average acoustics (dBA)
6
Idle mode
Performance seek mode
Quiet seek mode
24
29
25
24
29
25
24
29
25
Physical Dimensions
Height (in./mm, max) 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
Width (in./mm, ± .01 in.) 4/101.6 4/101.6 4/101.6
Weight (lb./kg, ± 10%) 1.61/0.73 1.40/0.64 1.40/0.64
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 6 Gb/s or 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 RoHS Directive 2011/65/EU.
3
Controlled unload at ambient condition
4
The term of the limited warranty may vary by region. Visit http://support.wdc.com/warranty for details.
5
No non-recoverable errors during operating tests or after non-operating tests.
6
Sound power level.