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Item#: N82E16822178283

Seagate Cheetah 15K.5 ST3146855SS 146GB 15000 RPM 16MB Cache SAS 3Gb/s 3.5" Internal Hard Drive Bare Drive


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  • 15000 RPM 16MB Cache
  • SAS 3Gb/s
  • For Enterprise Storage
  • 1 YR

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

This Cheetah 15K.5 drive offers cost-effective solutions, allowing systems to keep up with increasing performance needs over a longer period of time. Seagate designed the Cheetah 15K.5 for maximum reliability and data protection. New features in this generation have improved nonrecoverable error rate by a factor of 10. Cheetah 15K.5 incorporates Seagate-exclusive features such as IRAW (Idle Read After Write), enhanced ECC (Error Correction Code), and BMS (Background Media Scan) to safeguard data integrity and accuracy.

Key Advantages
  • Perpendicular recording technology is fundamentally superior, enabling up to 300GB capacity with 30 percent higher sustained data rate. The Cheetah 15K.5 ST3146855SS has a capacity of 146GB.
  • Cheetah 15K.5 is the first drive to break the 100-Mbyte sustained transfer rate barrier, delivering up to 125 MB/sec
  • 30 percent more IOPS and more than 20 percent faster response times than 3.5-inch 10K drives
  • Fastest and most reliable Cheetah 15K ever
  • Highest reliability of any 3.5-inch drive in the industry, designed for demanding 24x7 enterprise applications
  • Reduces RAID rebuild times while minimizing reliability risks

Fastest ever
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Highest Reliability ever
Seagate continues to focus on reliability and data protection. New features in this generation have improved the nonrecoverable error rate by a factor of 10. Seagate-exclusive IRAW (Idle Read After Write) enhances data protection by verifying—during drive idle time – that data in the drive buffer was properly written. Enhanced Error Correction Code better maintains performance throughout the life of the drive and reduces the probability of lost data. Moreover, the second generation of Seagate-exclusive Background Media Scan (BMS) proactively scans the media for potential defects during drive idle time. It enables incipient errors to be corrected before data is lost.


Learn more about the Seagate ST3146855SS

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 90 days
  • Limited Warranty period (labor): 90 days
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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