64 MB Cache 3.5Inches Disk Size 5400 Rpm Speed Hard Drives

Interface Type: SATAII Size: 3.5" Application: Desktop Speed: 5400rpm Model Number: WD20EARS Cache: 64 MB Condition:: New Applicable models:: desktop Capacity:: 2TB Disk Size:: 3.5 inches Interface:: SATA2 Speed:: 5400 rpm Category:: green plate Weight:: 0.73 kg
Unit Type: piece Package Weight: 0.5kg Package Size: 30cm x 20cm x 8cm

WD / WD 20EARS/2TB/64M/3.5 inch desktop / hard drive SATA Interfaces / genuine Western Digital (green plate)/ (Super cheap)

Baby details:
Product Name: WD 2TB 5400 transfer 64MB
Capacity: 2TB
Brand: WD / WD
Western Digital Model: WD20EARS
Applicable models: desktop
Service: Genius
Disk Size: 3.5 inches
Interface: SATA2
Speed: 5400 rpm
Cache: 64M
Condition: New

Performance parameters:
WD Caviar Green SATA HDD 2 TB, 64 MB cache, SATA 3 Gb / s less heat, quieter, more environmentally friendly. WD Caviar Green hard drives less power consumption, quieter, lower heat, for desktop and external storage devices.
Cache size: 64 MB
Capacity: 2TB
Type: WD20EARS

As hard drive capacities increase, the drive power required also increases. Western Digital Caviar Green hard drive so that we can build environmentally conscious customers a higher capacity and coordination of system performance and stability, the system reliable, pay attention to energy conservation.

Key Features:
 Reduce power consumption:
WD with its IntelliSeek, NoTouch and IntelliPower technology reduces the product power consumption than standard desktop drives up to 40% less.

Auxiliary equipment to make environmentally-friendly personal computer possible:
Compared with the desktop product, each WD Caviar Green hard drive power consumption can save an average of 4 to 5 watts; This allows our customers to focus on energy-efficient building greater capacity in the system, to get a balanced system performance, reliability and energy-saving features.

Low heat, quiet:
WD GreenPower technology can run cooler, so that higher reliability and lower noise reduction, for a variety of ultra-quiet PCs and external hard drive.

Large capacity:
Maximum capacity: 2 TB, for a variety of storage-intensive process and consumption of space and a very Window Vista operating system provides the most available capacity, but also left plenty of room for storing photos, music and video.

The best choice for external hard drives:
External hard drive manufacturers do not need to use the high-capacity hard drive cooling device installed in the product, WD Caviar Green hard drives of similar products in the lowest heat, noise minimal.

IntelliPower technology:
Speed: data transfer rate and caching algorithms precise balance, designed to achieve significant power savings and solid performance.

IntelliSeek technology:
Search for best data to calculate the speed, lower power consumption, noise and vibration.

NoTouch ramp load technology:
The recording head never touches the disk media ensuring significantly less wear of the recording head and media, in transit provides better protection.

Perpendicular magnetic recording (PMR):
Using PMR technology to achieve even greater areal density.

StableTrac: The motor shaft is fixed at both ends to reduce system operation due to vibration and stabilize platters, read and write operations so that accurate tracking can be. (2 TB models only)

Low power operation:
 WD Caviar Green drives use less power during startup, but a lower peak load.
Advanced power technology, electronic components with best in class low power consumption, low power consumption requirements for higher reliability.
Best for environment-friendly PCs and external storage devices requiring lower power consumption, lower heat and a smaller operation run noise.

Performance Specifications:
Transfer Rate:
Buffer To Host (Serial ATA): 3 Gb / s (maximum transmission speed)

Physical Specifications:

Formatted Capacity: 2,000,398
MB Capacity: 2 TB
Interface: SATA 3
Gb / s per user sector of the disk drive number: 3907029168

Physical Dimensions:
(Inch):
Height: 1.028 in.
Length: 5.787 in.
Width: 4.00 inches
Weight: 1.61 pounds
(Metric):
Height: 26.1 mm
Length: 147 mm
Width: 101.6 mm
Weight: 0.73 kg

Environmental Specifications:
Shock:
Operating Shock (Read): 65 G, 2 ms
Non-operating Shock: 300G, 2 ms
Acoustics:
Idle Mode: 25 dBA (average)
Search mode: 0 29 dBA (average)
Search mode: 3 26 dBA (average)

Vibration:
Action:
Linear 20-300 Hz, .75 G (0 to peak)
Random 10-300 Hz, 0.008 g2 / Hz
 
Non-operating:
Low Frequency: 5-20 Hz, 0.195 inches (double amplitude)
High Frequency: 20-500 Hz, 4.0G (0 to peak)

Electrical Specifications:
Current demand:
Power consumption:
Read / Write: 6.0 watts
Idle: 3.7 watts
Standby: 0.80 watts
Sleep: 0.80 Watts

As used for storage capacity, one megabyte (MB) = 100 million bytes, one gigabyte (GB) = 10 billion bytes, 1 terabyte (TB) = 10000 billion bytes. Total accessible capacity varies according to changes in the operating environment changes. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. Used for transfer rate or interface, megabyte per second (MB / s) = 100 million bytes / second, megabits per second (Mb / s) = 100 million bits / second, gigabit per second (Gb / s) = 10 billion bits / second.

FAQ:
1, question: we sell genuine licensed mobile hard disk is it?
Answer: we sell mobile hard drives are Western Digital hard drive manufacturers and original brand new authentic licensed manufacturer, place of origin in Thailand or Malaysia,

2 questions: Why do I get the hard drive capacity and the capacity claims does not match?
Answer: After the purchase of hard, careful people will find them in the operating system, hard drive capacity and the capacity of the official nominal match, must be less than the nominal capacity, the greater the capacity the greater the difference. Nominal 40GB hard drive, the operating system to display only the 38GB; 80GB hard drive is only 75GB; and 120GB hard drive is only 114GB. This is not a manufacturer or distributor shoddy deceive consumers, but manufacturers of hard disk capacity calculation method and the operating system caused by different calculation methods, the relationship between different units due to conversion.
    As we all know, the computer is binary, resulting in the operating system so that the capacity calculation is based on a binary for each of 1024, every 1024 bytes 1KB, 1024KB as per 1MB, 1024MB each for the 1GB, as per 1024GB 1TB ; the hard drive manufacturers in terms of computing capacity is based on a hex per 1,000, 1,000 bytes per 1KB, 1000KB as per 1MB, 1000MB each for the 1GB, as per 1000GB 1TB, this difference between the two resulted in hexadecimal Hard disk capacity 'shrink'.
    120GB hard drive for example: manufacturers capacity calculation method: 120GB = 120,000 MB = 120,000,000 KB = 120,000,000,000 bytes, which translates into the operating system method: 120,000,000,000 bytes / 1024 = 117,187,500 KB/1024 = 114,440.91796875 MB = 114GB.

Simple algorithm: hard disk capacity / 1024 * 1024 * 1024
80,000,000,000 / (1024 * 1024 * 1024) = 74.5GB
40,000,000,000 / (1024 * 1024 * 1024) = 37.25GB
Need to partition and format the hard disk, there are differences between the operating system, plus installation of the operating system behavior when copying files, hard drives will be up more space, so the operating system displays the hard disk capacity and nominal capacity would differences, the two types of hard disk capacity difference of about 5% -10% should be normal.

3 questions: the size of mobile hard disk in the end be? In addition to the power adapter is not required it?
Answer: 2.5-inch mobile hard disk as basic and the size of the two identity cards, and does not require an external power adapter
  3.5-inch mobile hard disk base and the size of an ordinary brick building, and require an external power adapter.

4 questions: Western Digital HDD easily broken it?
Answer: the production of original Western Digital Hard Drive, Western Digital is the result of strict quality control checks multiple manufacturers, the factory less than 0.01% of the bad disk, since we are Western Digital distributor level, reducing the flow of mobile hard disk in the process of transport links, our professional packaging and delivery to your hand, the basic rate of the bad disk is no difference between the factory and manufacturers, so we purchased through the Western Digital HDD, problems are rare, you can feel comfortable buying.

5, question: If bad, what is the three-year renewal for free?
Answer: 1. Where in any one of our web site to buy Western Digital Hard Drive are in the 3-year renewal of the service for free within.
  2. Renewals means you do not replace a full set of split over new mobile hard disk packaging.
  3. Within three years of hard use in normal conditions, quality problems, you can enjoy this service.
  4. Artificial damage (such as falls, water) is not within the scope of new ones.