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Seagate Constellation ST9500431SS Serial SCSI / SAS Hard Drive

Item Number: SGT-ST9500431SS-BN-OE
Manufacturer's Part Number: ST9500431SS
Contact us about ST9500431SSGet help regarding ST9500431SS

Seagate Constellation ST9500431SS 500GB 7.2K 6.0Gbps SFF SED Self-Encrypting Near-Line Serial SCSI / SAS Hard Drive - Brand New

ST9500431SS SCSI Hard Drive Photo

ST9500431SS SCSI Hard Drive Photo ST9500431SS SCSI Hard Drive Photo ST9500431SS SCSI Hard Drive Photo ST9500431SS SCSI Hard Drive Photo
Price: $199.00
Condition: Brand New - What does this mean?
Warranty: 1 Year DiscTech - What does this mean?

Capacity: 500GB
Spindle Speed: 7,200RPM
Interface Type: SAS Serial Attached SCSI
Disk Size: 2.5inx15mm SFF Server Hard Drive
Sustained Throughput (MBps): 97
Average Seek Time (read/write ms): 8.5 / 9.5
Electrical Interface Speed: SAS-2 Serial Attached SCSI v2 - 6.0Gbps
On-Board Cache: 16MB

Brand New - What does this mean?
1 Year DiscTech - What does this mean?

Key Advantages

  • Industry’s first 2.5-inch, 15-mm enterprise-class nearline drive for dense, space-constrained data centers
  • Lowest operating power and enhanced PowerChoice™ host-selectable power options for unprecedented power savings (up to 54 percent—as low as 1.1 W) during slow or idle periods
  • The industry’s highest-reliability 7200-RPM drive, designed for 24x7 operation
  • Best-in-class rotational vibration tolerance ensures unrivalled performance in high spindle-density applications, and multi-drive firmware maximizes system availability.
  • Choose SAS for the seamless Tier 2 enterprise experience, with improved data integrity. SAS 2.0 enables faster data access (6Gb/s) and larger topologies over greater distances, increasing system scalability, data throughput and connectivity.
  • Government-grade Self-Encrypting Drive security available on SAS models.

Best-Fit Applications

  • Storage-hungry business applications
  • Storage area networks (SAN) and network attached storage (NAS)
  • Maximum-capacity servers and blade servers
  • Rich media content storage—audio, video, image
  • Reference and compliance data storage
  • Enterprise backup and restore—D2D, virtual tape
  • Collaboration—email, messaging
  • Infrastructure—Web, print, file


This drive is compatible with any of our SAS drive trays and any of our SAS controllers.


Drive specification

ST9500431SS (SED)

Formatted Gbytes (512 bytes/sector)


Self Encrypting Drive (SED) Government Grade Security


Bytes per sector


Spindle speed (RPM)


I/O data transfer rate (MBps)


Cache buffer


Interface Type

6.0Gbps SAS

Average latency

4.16 ms

Seek time (read / write) ms

8.5 / 9.5

Track-to-track seek (read / write) ms

0.8 / 1.0

Dimensions (HxLxW) mm

14.8 / 100.5 / 70


0.196 kg

Operating Shock (Read)

70G, 2ms

Non-operating Shock

400G, 2ms

Temperature - Operating

5C -55C

Temperature - Non-operating

-40C - 70C

Current Requirements 12VDC (Read/Write, Idle)

3.5w / 2.6w

Click here to view the manufacturers item description/brochure

Dell G176J / Y961D / G281D 2.5" SAS Hard Drive Tray/Caddy

Brand New - $39.00

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Brand New - $24.50

Dell KF248 / F830C 2.5" SAS Hard Drive Tray / Caddy

Brand New - $34.00

Dell PERC H700 K883J 512MB SAS Adapter RAID Controller

Brand New - $499.00

HP Compaq 378343-002 2.5" SATA / SAS Hard Drive Tray / Caddy

Brand New - $34.95

Dell PERC H310 HV52W 6.0Gb/s SAS / SATA RAID Controller

New Pull - $159.00