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WD 300GB S25 2.5" SATA Internal Drive

WD 300GB S25 2.5" SATA Internal Drive

WD 300GB S25 2.5" SATA Internal Drive Back View

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Product Highlights

  • Ultra-Fast SAS Storage
  • Rotary Acceleration Feed
  • Low Power Consumption
  • 10,000 RPM
  • Ultra-Cool Operation
  • RoHS Compliant
  • 5 Year Warranty
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The 300GB S25 2.5" SATA Internal Drive from WD provides 300 GB of storage suitable for enterprise server and storage applications. The high performance 6 Gbps SAS interface enables maximum data reliability, availability, and scalability. Its features include rotational speed of 10,000 RPM, RoHS compliant, low power consumption and No Touch ramp load technology. The WD S25 drive is also an effective solution for high performance computing solutions like power-constrained data centers, database transaction processing, and rack, tower and blade servers.

Ultra-Fast SAS Storage
WD S25 delivers 6 Gbps transfer rates, sustained sequential data rates up to 155 Mbps and fast average read seek times of 3.8 ms or less.
Low Power Consumption
This 2.5" SAS drive requires less than 8 watts to operate.
Ultra-Cool Operation
The small form-factor, 70 percent smaller than 3.5" drives, allows more system airflow resulting in lower cooling costs.
Rotary Acceleration Feed Forward
The S25 optimizes operation and performance when the drives are used in a vibration-prone multi-drive chassis.
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.
Environmentally Conscious
In addition to being ROHS compliant, these drives also incorporate a halogen free design.
Interface SATA 6 Gbps
Formatted Capacity 300 Gb
User Sectors per Drive 586,072,368
SCSI Command queuing: Yes
Form Factor 2.5" (6.35 cm)
RoHS Compliant Yes
Data Transfer Rate Buffer to host: 6 Gbps
Host to drive (sustained): 126 Mbps
Cache 16 Mb
Rotational Speed 10,000 RPM
Average Drive Ready Time 16 second
Reliability / Data Integrity
Load/Unload Cycles 600,000* 1
Please Note:

Controlled unload at ambient condition.

Non-Recoverable Read Errors <10 in 10 per bits read
MTBF 1,750,000 Hours
Power Management
12VDC 1.6
Average Power Requirements Sequential Read/Write: 8.3
Random read/write: 7.1
Environmental Requirements
Temperature Operating: 41 to 131°F (5 to 55°C)
Non-Operating: -40 to 160°F (-40 to 70°C)
Shock Operating (2 ms, read/write): 30
Operating (2 ms, read): 65
Non-operating: 300 (2 ms)
Acoustics Idle mode: 28
Performance Seek mode: 34 2
Please Note:

Sound power level.

Dimensions (HxWxL) 0.59 x 2.75 x 3.94" (1.49 x 6.98 x 10 cm)
Weight 7.68 oz (217.72 g)
WD 300GB S25 2.5" SATA Internal Drive
  • 5 Year Limited Warranty*
  • Note: *The term of the limited warranty may vary by region.

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