Technical

Specification Capacity: 250 GB Form Factor: 3.5" x 1/3H Interface: Serial ATA-600 Buffer





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The My Book Duo drive is desktop RAID storage with massive capacity ideal for storing photos, videos, documents & music. RAID-0 mode provides super-fast performance with up to 360MB/s 1 sequential read speeds (using the USB (Universal Serial Bus) Type-C port). Switch to RAID-1 configuration for redundancy & to mirror data on the WD Red drives inside. A USB (Universal Serial Bus) Type-C port with all cables included makes it universally compatible (supports USB (Universal Serial Bus) 3.1 Gen 1/3.0/2.0). Two USB (Universal Serial Bus) Type-A hub ports deliver flexibility for additional accessories. (1) As used for sequential read transfer rate, megabyte per second (MB/s) = one million bytes per second. (2) As used for storage capacity, one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment & RAID/JBOD configuration. ...

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 & the right balance of system performance, ensured reliability, & energy conservation. ...

WD Caviar Black drives combine a high performance electronics architecture with a rock solid mechanical architecture to deliver the perfect storage solution for your fully-loaded PC or maxed out gaming machine. Cool drive operation, no-touch head technology, & leading-edge vibration protection ensure enhanced reliability & sustained data throughput. Its ideal for power computing applications such as multimedia, video & photo editing, & maxed out gaming computers. Performance Specifications Buffer Size 64 MB Load/unload Cycles 300, 000 minimum Physical Specifications Formatted Capacity 500, 107 MB Interface SATA 6 Gb/s Height 26.1 mm Depth 147 mm Environmental Specifications- Acoustics Idle Mode 28 d BA (average) Seek Mode 0 33 d BA (average) Electrical Specifications Read/ Write 6.80 Watts Idle 6.10 Watts Standby 0.70 Watts Sleep 0.70 Watts ...

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 & the right balance of system performance, ensured reliability, & energy conservation. Reduced power consumption
- WD has reduced power consumption making it possible for energy conscious customers to build systems with higher capacities & the right balance of system performance, ensured reliability, & energy conservation Cool & quiet
- drives that benefit from WD Green Power Technology yield lower operating temperatures for increased reliability & low acoustics for ultra-quiet PCs & external drives Intelli Power technology
- a fine-tuned balance of spin speed, transfer rate, & caching algorithms designed to deliver both significant power savings & solid performance No Touch ramp load technology
- the recording head never touches the disk media ensuring significantly less wear to the recording head & media as well as better drive protection in transit Advanced Format (AF)
- technology being adopted by WD & other drive manufacturers as one of multiple ways to continue growing hard drive capacities. AF is a more efficient media format that enables increased areal densities




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WD Green„¢ Desktop Hard Drives WD Green hard drives are designed for use in systems that require cool & quiet operation, as secondary drives in PCs, for external enclosures & other applications for which low noise & low heat are beneficial. These earth-friendly hard drives are ideal to be used whenever energy efficiency is needed. WDs commitment to sustainability “ WD's green initiative goes beyond the product level, focusing on recycling & improving the cleanliness of the air, water & l&. Product Features Leading the way to green hard drives
- WD led the industry in creating a new category of hard drives that use less power & helps to reduce the world's energy demands one computer user at a time. With over 100 million WD Green drives sold* customers using WD Green drives have saved the planet over 466 million kwh of power “ nearly equaling the annual power production of a single coal power plant! Conflict-free materials
- As a leader in hard drive manufacturing, WD proudly guarantees our hard drives are built with 100% conflict free raw materials. Halogen free
- In addition to being Ro HS compliant, all WD Green drives are lead & halogen free, resulting in less pollutants getting into our environment. Reduced rare earths dependency
- WD™s nextgeneration WD Green hard drives are built using less rare earth minerals. Reduced power consumption
- Best-in-class power management technology delivers significant power savings & solid performance. Cool & quiet
- WD Green Power Technology yields lower operating temperatures for increased reliability & low acoustics perfect for ultra-quiet PCs & external drives. No Touch Ramp Load technology
- The recording head never touches the disk mediaensuring significantly less wear to the recording head & media as well as better drive protection in transit. Intelli Seek
- Calculates optimum seek speeds to lower power consumption, noise & vibration. Tested for compatibility
- We perform tests on hundreds of systems & a multitude of platforms in our FIT Lab„¢ to give our customers confidence that

Specification Hard Drive Interface: SATA 3 Gb/s Capacity: 2 TB User Sectors per drive: 3, 907, 029, 168 Advanced Format (AF): Yes SATA latching connector: Yes Form Factor: 3.5" Ro HS Compliant: Yes Performance Data transfer rate (max)
- Buffer to host: 6 Gb/s Data transfer rate (max)
- Host to/from drive (sustained): 123 MB/s Cache (MB): 64 Rotational Speed (RPM): Intelli Power Reliability/ Data Integrity Load/unload cycles: 300, 000 Non-recoverable read errors per bits read: <1 in 10 Limited manufacturer warranty (years): 2 years Power Management 12VDC (A, peak): 1.78 Average power requirements (W) Read/write: 6 Idle: 5.5 Standby: 0.8 Sleep: 0.8 Environmental Specifications Operating Temperature (°C): 0 to 60 Non-operating Temperature (°C): -40 to 70 Operating Shock (Gs) (2 ms, read): 30 Operating Shock (Gs) (2 ms, read/write): 65 Non-operating Shock (Gs) (1 ms): 250 Average acoustics (d BA)
- Idle mode: 24 Average acoustics (d BA)
- Performance seek mode: 29 Average acoustics (d BA)
- Quiet seek mode: 25 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%): 1.40/0.64

















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WD Green Mobile Hard Drives Cool, quiet operation for efficient eco-conscious computing. Ideal for custom-built external enclosures & other applications for which low noise & low heat are beneficial * Cannot be used in laptop or notebook computers. Designed for PCs & custom external enclosures. Consult system specifications for maximum allowable drive height before attempting to install. Benefits: Cool & quiet Reduced power consumption Eco-conscious No Touch Ramp Load technology 2 Year Manufacturer Warranty These earth-friendly hard drives are ideal to be used whenever energy efficiency is needed. ...

WD quality inside & out. Designed with the same commitment to quality that made WD external drives the number one selling drives in the world. Preformatted for PCs. Designed for use with Windows-based computers. Can be easily reformatted for use with Macs. Plug-&-play simplicity. Just connect the power & plug it into a USB (Universal Serial Bus) port to instantly add more storage to your computer. Designed to save power. Turns on & off with your computer. Enters idle mode when not in use. Utilizes a WD drive with power-saving WD Green Power Technology & an Energy Star compliant power supply. Earth-friendly packaging. Packaged in a minimized eco-friendly, recyclable packaging made from recycled materials. ...

The Western Digital WDBACW0020HBK My Book Essential 2TB USB (Universal Serial Bus) 3.0 External Hard Drive features high capacity storage with both USB (Universal Serial Bus) 2.0 & USB (Universal Serial Bus) 3.0 connectivity for compatibility today & fast speeds for the future. Put your digital life on the high capacity Western Digital USB (Universal Serial Bus) 3.0 Hard Drive, designed with Western Digitals high quality & reliability & featuring the latest USB (Universal Serial Bus) 3.0, which lets you access & save files up to 3 times faster than USB (Universal Serial Bus) 2.0. Key Features Dual USB (Universal Serial Bus) 3.0 & USB (Universal Serial Bus) 2.0 compatibility: A single drive with universal compatibility today & next-generation speed for tomorrow. Use it with USB (Universal Serial Bus) 2.0 now & step up to USB (Universal Serial Bus) 3.0 speed when you’re ready. Up to 3x faster transfer rates: When connected to a Super Speed USB (Universal Serial Bus) 3.0 port the Western Digital My Book Essential USB (Universal Serial Bus) 3.0 Hard Drive
- WDBACW0020HBK-UESN lets you access & save files up to 3 times faster than USB (Universal Serial Bus) 2.0. Transfer a 2-hour HD movie in just 3 minutes instead of 13 minutes. WD quality inside & out: For over 20 years, millions of people worldwide have trusted their data to WD hard drives. They are successful because they understand the importance of your data & our first concern is keeping that data safe. WD Smart Ware software: Youre in control of your backup. Install all the features, select just the components you need, or if you prefer, choose not to use the software at all. Automatic, continuous backup: Works quietly in the background to protect your data using minimal PC resources. Whenever you add or change a file it’s instantly backed up on the Western Digital My Book Essential 2TB USB (Universal Serial Bus) 3.0 Hard Drive
- WDBACW0020HBK-UESN. Password protection for privacy: Gain peace of mind knowing that your data is protected from unauthorised access with password protection & encryption. Planet friendly: We designed a small box to minimise waste & used recycled material. We encourage you to recycle it. Backwards Compatible with USB (Universal Serial Bus) 2.0 The good news is that the WD WDBACW0020HBK My Book Essential USB (Universal Serial Bus) 3.0 External Hard Drive has been carefully planned from the start to peacefully co-exist with USB (Universal Serial Bus) 2.0. First of all, while USB (Universal Serial Bus) 3.0 specifies new physical connections & thus new cables to take advantage of the higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB (Universal Serial Bus) 2.0 contacts in the exact same location as before. Western Digital My Book Essential USB (Universal Serial Bus) 3.0 External Hard Drive Holds: Up to 400, 000 digital photos Up to 500, 000 songs (MP3) Up to 50, 000 songs (uncompressed CD quality) Up to 140 hours of Digital Video (DV) Up to 850 hours of DVD quality video Up to 240 hours of HD video

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Ultra-fast USB (Universal Serial Bus) 3.0 performance. With the blazing-fast connectivity of Super Speed USB (Universal Serial Bus) 3.0, this drive lets you access & save files in record time. Reduce transfer time by up to 3 times when compared to USB (Universal Serial Bus) 2.0 transfer rates. All metal. Mac-ready. The premium aluminum enclosure complements your Mac & remains cool to the touch. Its formatted to work with your Mac right out of the box & is ideal for demanding graphics professionals. Password protection secures your drive. Use WD Security to set password protection & hardware encryption & protect your files from unauthorized use or access.

Specification Capacity: 2TB Interface: USB (Universal Serial Bus) 3.0 Hard Drive

Size: 88.9mm (3.5") Data transfer rate: 5000MB/s Weight: 1.08kg

Width: 48 mm

Depth: 135 mm

Height: 165 mm Operating temperature range: 5
- 35 °C Storage temperature range: -20
- 65 °C Input voltage: 100-240 V (AC Adapter included) Input frequency: 47
- 63 Hz Operating systems supported Windows Mac












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