User Manual

Specifications
PRODUCT BRIEF
NAS HARD DRIVES
WD Red
™
Specifications subject to change without notice.
 Not all products may be available in all regions of the world
 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 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. Performance will vary
depending on your hardware and softwre components and configurations.
 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.
 Controlled unload at ambient condition.
 MTBF specifications are based upon internal testing using a 40°C base casting temperature. MTBF is based on
a sample population and is estimated by statistical measurements and acceleration algorithms. MTBF does not
predict an individual drive’s reliability and does not constitute a warranty.
 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.
 See support.wdc.com/warranty for regionally specific warranty details.
 Power measurements at room-ambient temperature.
 No non-recoverable errors during operating tests or after non-operating tests.
10
Sound power level.
12
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.
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Implementation of SMR for these products is device-managed SMR.
14TB 12TB 10TB 10TB 8TB
Model Number¹
WD140EFFX WD120EFAX WD101EFAX WD100EFAX WD80EFAX
Recording Technology
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CMR CMR CMR CMR CMR
Interface SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
Formatted capacity 14TB 12TB 10TB 10TB 8TB
Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Native command queuing Yes Yes Yes Yes Yes
Advanced Format (AF) Yes Yes Yes Yes Yes
RoHS compliant Yes Yes Yes Yes Yes
Performance
Interface Transfer Rate up to 210 MB/s 196 MB/s 215 MB/s 210 MB/s 198 MB/s
Cache (MB) 512 256 256 256 256
Performance Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class
Reliability/Data Integrity
Load/unload cycles 600,000 600,000 600,000 600,000 600,000
Non-recoverable errors per bits
read <1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014
MTBF (hours) 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000
Workload Rate (TB/year) 180 180 180 180 180
Limited warranty (years) 3 3 3 3 3
Power Management
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12VDC ±5% (A, peak)
5VDC ±5% (A, peak)
Average power requirements (W)
Read/Write
Idle
Standby and Sleep
1.85
6.5
3.0
0.8
1.84
6.3
2.9
0.6
1.75
8.4
4.6
0.5
1.79
5.7
2.8
0.5
1.85
8.8
5.3
0.8
Environmental Specifications⁹
Temperature (°C)
Operating
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
300
30
65
300
30
65
250
30
65
300
30
65
300
Acoustics (dBA)10
Idle
Seek (average)
20
29
20
29
34
38
20
29
27
29
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%) 1.52/0.69 1.46/0.66 1.65/0.75 1.43/0.65 1.58/0.715