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2TB Western Digital Caviar Green
Hard Disk Drive
Mfr P/N: WD20EARS OWC SKU: WDGWD20EARS
Cool, quiet, eco-friendly
- Power-saving variable spin speed
- SATA 3.0 Gb/s Interface
- Complies with the RoHS directive
- 64MB Cache data buffer
- Western Digital 3 Year Limited Warranty
WD Caviar Green drives use less power and support quieter, cooler-running desktop PCs and external storage devices.
As hard drive capacities increase, the power required to run those drives increases as well. WD Caviar Green drives make it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.
Reduced power consumption
WD has reduced power consumption by up to 40 percent compared to standard desktop drives with the combination of WD's IntelliSeek™, NoTouch™, and IntelliPower™ technologies. Helps enable eco-friendly PCs
WD Caviar Green drives yield an average drive power savings of 4-5 watts over standard desktop drives making it possible for our energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.
Cool and quiet
GreenPower™ technology yields lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives.
Massive capacity
Capacities up to 2TB offer the most available capacity for storage-intensive programs and space-hungry operating systems, like Window Vista®, with plenty of room left over for photos, music, and video.
Perfect for external drives
External drive manufacturers can eliminate the need for a fan in a high-capacity product with a WD Caviar Green drive, the coolest and quietest in its class.
IntelliPower
A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings and solid performance.
IntelliSeek
Calculates optimum seek speeds to lower power consumption, noise, and vibration.
NoTouch ramp load technology
The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.
Perpendicular Magnetic Recording (PMR)
Employs PMR technology to achieve even greater areal density.
StableTrac™
The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations. (2TB models only)
Low power spin-up
WD Caviar Green drives consume less current during startup allowing lower peak loads.
Advanced power technology
Electronic components deliver best-in-class low power consumption for reduced power requirements and increased reliability.
Includes
- (1) Bare Hard Drive
- Western Digital 3 Year Limited Warranty
Specs
Total Capacity
- 2.0TB
Formatted Capacity
- 1863GiB
Drive Format
- Unformatted (Instructions on formatting here)
Rotational Speed
- 5,400-7,200RPM Variable Speed
Cache Data Buffer
- 64 MB
Form Factor
- 3.5-inch
Drive Interface
- SATA 3.0 Gb/s
Transfer Rate
- up to 3.0Gb/s
Average Latency
- 6 ms
Contact Start Stops
- 50,000
Read Mode (Max)
- Up to 6 Watts
Write Mode (Max)
- Up to 6 Watts
Idle Mode (Max)
- Up to 3.7 Watts
Dimensions
- Height: 2.6 cm (1.0 in)
- Length: 14.7 cm (5.8 in)
- Width: 10.2 cm (4.0 in)
Weight
- 730.0 g (1.61 lbs)
Guaranteed Sectors
- 3,907,029,168
RoHS Compliant
- Yes
Ambient Temperature
- Operating: 32°F to 107.6°F (0°C to 42°C)
- Non-Operating: -40°F to 158°F (-40°C to 70°C)
Altitude
- Operating: 2.9 m to 3,048.0 m (10 ft to 10,000 ft)
- Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
Humidity
- Operating: 5% to 90% non-condensing
- Non-Operating: 5% to 90% non-condensing
Shock
- Operating: 30 G max at 2 ms
- Non-Operating: 300 G max at 1 ms
Idle (Typical)
- 2.4 bels
Seek (Typical)
- 2.9 bels
Applications
- Environmentally Friendly PCs
- External Storage Requiring Lower Power Consumption And Cool, Quiet Operation.
Compatibility & Installation Videos

iMac (Retina 5K, 27-inch, Early 2019)
Early 2019
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac19,1
3.0GHz & 3.1GHz & 3.7GHz Core i5 & 3.6GHz Core i9

iMac (Retina 5K, 27-inch, Mid 2017)
Mid 2017
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac18,3
3.4GHz & 3.5GHz & 3.8GHz Core i5 & 4.2GHz Core i7

iMac (Retina 5K, 27-inch, Late 2015)
Late 2015
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac17,1
3.2GHz & 3.3GHz Core i5 & 4.0GHz Core i7

iMac (Retina 5K, 27-inch, Mid 2015)
Mid 2015
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac15,1
3.3GHz Core i5

iMac (Retina 5K, 27-inch, Late 2014)
Late 2014
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac15,1
4.0GHz Core i7

iMac (27-inch, Late 2013)
Late 2013
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac14,2
3.4GHz & 3.2GHz Core i5 & 3.5GHz Core i7

iMac (27-inch, Late 2012)
Late 2012
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac13,2
2.9GHz & 3.2GHz Core i5 & 3.4GHz Core i7

iMac (21.5-inch, Late 2011)
Late 2011
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac12,1
3.1GHz Core i3

iMac (27-inch, Mid 2011)
Mid 2011
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac12,2
2.7GHz & 3.1GHz Core i5 & 3.4GHz Core i7

iMac (21.5-inch, Mid 2011)
Mid 2011
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac12,1
2.5GHz & 2.7GHz Core i5 & 2.8GHz Core i7

iMac (27-inch, Mid 2010)
Mid 2010
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac11,3
3.2GHz Core i3 & 2.8GHz & 3.6GHz Core i5 & 2.93GHz Core i7

iMac (21.5-inch, Mid 2010)
Mid 2010
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac11,2
3.06GHz & 3.2GHz Core i3 & 3.6GHz Core i5

iMac (27-inch, Late 2009)
Late 2009
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac11,1
2.66GHz Core i5 & 2.8GHz Core i7

iMac (21.5-inch, Late 2009)
Late 2009
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac10,1
3.06GHz & 3.33GHz Core 2 Duo

iMac (27-inch, Late 2009)
Late 2009
Installation requires OWC Digital Thermal Sensor Kit
Installation requires OWC Digital Thermal Sensor Kit
Model ID: iMac10,1
3.06GHz & 3.33GHz Core 2 Duo

iMac (20-inch, Mid 2009)
Mid 2009
Model ID: iMac9,1
2.0GHz & 2.26GHz Core 2 Duo

iMac (20-inch, Early 2009)
Early 2009
Model ID: iMac9,1
2.66GHz Core 2 Duo

iMac (24-inch, Early 2009)
Early 2009
Model ID: iMac9,1
2.66GHz & 2.93GHz & 3.06GHz Core 2 Duo

iMac (20-inch, Early 2008)
Early 2008
Model ID: iMac8,1
2.4GHz & 2.66GHz Core 2 Duo

iMac (24-inch, Early 2008)
Early 2008
Model ID: iMac8,1
2.8GHz & 3.06GHz Core 2 Duo

iMac (20-inch, Mid 2007)
Mid 2007
Model ID: iMac7,1
2.4GHz & 2.0GHz Core 2 Duo

iMac (24-inch, Mid 2007)
Mid 2007
Model ID: iMac7,1
2.4GHz Core 2 Duo & 2.8GHz Core 2 Extreme

iMac (24-inch, Late 2006)
Late 2006
Model ID: iMac6,1
2.16GHz & 2.33GHz Core 2 Duo

iMac (17-inch, Late 2006)
Late 2006
Model ID: iMac5,2 & iMac5,1
1.83GHz & 2.0GHz & 2.16GHz Core 2 Duo

iMac (20-inch, Late 2006)
Late 2006
Model ID: iMac5,1
2.33GHz & 2.16GHz Core 2 Duo

iMac (17-inch, Early 2006)
Early 2006
Model ID: iMac4,1
1.83GHz Core Duo

iMac (20-inch, Early 2006)
Early 2006
Model ID: iMac4,1
2.0GHz Core Duo

iMac G5 (17-inch, Mid 2005)
Mid 2005
Model ID: PowerMac8,2
1.8GHz & 2.0GHz PowerPC G5

iMac G5 (20-inch, Mid 2005)
Mid 2005
Model ID: PowerMac8,2
2.0GHz PowerPC G5

iMac G5 (17-inch, Mid 2004)
Mid 2004
Model ID: PowerMac8,1
1.8GHz & 1.6GHz PowerPC G5

iMac G5 (20-inch, Mid 2004)
Mid 2004
Model ID: PowerMac8,1
1.8GHz PowerPC G5
Power Mac

Power Mac G5 (Late 2005)
Late 2005
Model ID: PowerMac11,2
2.5GHz & 2.3GHz & 2.0GHz PowerPC G5

Power Mac G5 (Early 2005)
Early 2005
Model ID: PowerMac7,3
2.0GHz & 2.7GHz & 2.3GHz PowerPC G5

Power Mac G5 (Late 2004)
Late 2004
Model ID: PowerMac9,1
1.8GHz PowerPC G5

Power Mac G5 (Mid 2004)
Mid 2004
Model ID: PowerMac7,3
1.8GHz & 2.5GHz & 2.0GHz PowerPC G5

Power Mac G5 (Late 2003)
Late 2003
Model ID: PowerMac7,2
1.8GHz PowerPC G5

Power Mac G5 (Mid 2003)
Mid 2003
Model ID: PowerMac7,2
1.8GHz & 1.6GHz & 2.0GHz PowerPC G5
Power Mac G4

Power Mac G4
Models equipped with a SATA controller card
Mac Pro

Mac Pro (Mid 2012)
Mid 2012
Model ID: MacPro5,1
3.2GHz 4-Core Xeon & 3.33GHz 6-Core Xeon & 2.66GHz & 2.4GHz & 3.06GHz 12-Core Xeon

Mac Pro (Mid 2010)
Mid 2010
Model ID: MacPro5,1
2.8GHz & 3.2GHz 4-Core Xeon & 3.33GHz 6-Core Xeon & 2.4GHz 8-Core Xeon & 2.93GHz & 2.66GHz 12-Core Xeon

Mac Pro (Early 2009)
Early 2009
Model ID: MacPro4,1
2.93GHz & 2.66GHz & 3.33GHz 4-Core Xeon & 2.93GHz & 2.66GHz & 2.26GHz 8-Core Xeon

Mac Pro (Early 2008)
Early 2008
Model ID: MacPro3,1
2.8GHz 4-Core Xeon & 2.8GHz & 3.2GHz & 3.0GHz 8-Core Xeon

Mac Pro (Mid 2006)
Mid 2006
Model ID: MacPro1,1
2.66GHz & 2.0GHz & 3.0GHz 4-Core Xeon
PC Compatible

PC Compatible
Products

3.5-inch SATA Enclosures
If upgrading/replacing an HDD with an existing external enclosure, please confirm the enclosure supports drives greater than 2.2TB. Pre-2009 enclosures are typically limited to 2.2TB and support may vary for models after 2009.