Seagate Constellation.2 ST9500620NS 500GB 7.2K 6Gbps SFF Enterprise SATA HDD Hard Drive

Seagate Part #/MPN: ST9500620NS

DiscTech Item #: SGT-ST9500620NS-BN-OE


Enterprise Grade

Capacity: 500GB

Speed: 7,200RPM

Interface Types: SATA

Form Factor: 2.5inx15mm SFF Server Drive

Sector Size: 512 / 512e

Sustained Throughput: 115

Average Seek Time: 8.5 / 9.5

Electrical Interface: SATA 600 - 6.0Gbps

On-Board Cache: 64MB

Seagate Constellation.2 ST9500620NS 500GB 7.2K 6Gbps SFF Enterprise SATA HDD Hard Drive - Brand New

Seagate Constellation.2 ST9500620NS 500GB 6.0Gb/s 7,200 RPM 2.5in / SFF / Small Form Factor Enterprise SATA / Serial ATA HDD / Hard Disk Drive - Brand New


Design Small and Deliver BIG—2.5-Inch, Eco-Friendly Nearline Drive

Key Advantages

  • Second generation of the first 2.5-inch, mainstream capacity, 15mm z-height, nearline enterprise drive for space-constrained data centers
  • Choose 6Gb/s SAS for data integrity, scalability and fast data access, or SATA 6Gb/s for fast, economical Tier 2/nearline performance
  • The industry’s highest-reliability 7200-RPM drive, designed for 24×7 operation with MTBF of 1.4M hours and AFR of 0.62%
  • Enterprise-class firmware features and best-in-class rotational vibration tolerance maximize system availability and performance
  • Lowest operating power (under 6.4W) and enhanced PowerChoice™ options for additional power savings during slow or idle periods; Workload Management™ technology helps systems keep drives cool
  • Self-Encrypting Drive (SED) option (AES-256) cuts IT drive retirement costs while securely protecting data where it lives—on the drive
  • FIPS 140-2 Validated™ drives protect Sensitive but Unclassified and Protected class data

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
  • Enterprise backup and restore—D2D, virtual tape
  • Cloud computing

ALT. PN: 9RZ164


This drive is compatible with any server that accepts 2.5"x15mm SATA hard drives and/or any of our SATA drive trays and controllers.

Model SeriesConstellation.2™
Standard Model NumberST9500620NS
Protection Information-
Low HalogenYes
Reliability/Data Integrity
Mean Time Between Failures (MTBF, hours)1.4 million
Reliability Rating @ Full 24x7 Operation (AFR)0.62%
Nonrecoverable Read Errors per Bits Read1 sector per 10E15
Power-On Hours per Year8760
Bytes per Sector512
Spindle Speed (RPM)7200
Cache, Multisegmented (MB)64
Interface Access Speed (Gb/s)6.0, 3.0, 1.5
Max. Sustained Transfer Rate (MB/s)115
Seek Time, Average Read/Write (ms)8.5/9.5
Average Latency (ms)4.16
Interface PortsSingle
RV Tolerance (rad/s to 1800Hz)16
Power Management
Idle Power (W)2.67
Typical Operating, Random Read (W)4.51
Power Supply Requirements+12V and +5V
PowerChoice™ Technology (W)As low as 1.19
Temperature, Operating (°C)5 to 60
Vibration, Operating, <400Hz (Gs)0.5
Vibration, Nonoperating, <500Hz (Gs)3.0
Shock, Operating, 2ms (Gs)70
Shock, Nonoperating, 1ms and 2ms (Gs)400
Acoustics, Typical Idle (bels)2.2
Acoustics, Typical Seek (bels)2.8
Height (in/mm)0.591/15.00
Width (in/mm)2.760/70.10
Depth (in/mm)3.955/100.45
Weight (lb/kg)0.403/0.183

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ROHS Compliant

Alternate MPNs: 9RZ164

Weight: 1 lb

Warranty: 1 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty