ST31000520AS Seagate Barracuda 1TB SATA Hard Drive

Seagate Part #/MPN: ST31000520AS

DiscTech Item #: SGT-ST31000520AS-OB-OE

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Capacity: 1TB

Speed: 5,900RPM

Interface Types: SATA

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 95

Average Seek Time: <16

Electrical Interface: SATA 300 - 3.0Gbps

On-Board Cache: 32MB

Seagate Barracuda LP 1TB 5.9K SATA Hard Drive ST31000520AS - New Open Box OEM

The Seagate® Barracuda® LP drive is designed to meet a growing need in the market today—a low-power, whisper-quiet, entry-level drive that delivers green, low power savings over the life of the drive. This drive family has leading performance and is the perfect entry-level drive.

  • Super-low power consumption in every power mode
  • Cool drives provide long-lasting benefits to the PC or external drive, reducing some component and maintenance costs
  • Meets and exceeds eco-green customers requirements
  • Delivers power savings
  • Built to exacting Seagate green standards:
    • Complies with RoHS directive
    • Typically 70 percent or more of the materials used to build the drive can be recycled.
    • Designed, built and delivered using best-in-class, environmentally friendly processes
  • 1-TB capacity

Capacity: 1 TB



This drive is compatible with any of our 3.5" hot-swap SATA drive trays.

Model NumberST31000520AS
InterfaceSATA 3Gb/s
Areal density (avg)341.5Gb/in2
Guaranteed Sectors1,953,525,168
Height26.1mm (1.028 in)
Width101.85mm (4.010 in)
Length146.99mm (5.787 in)
Weight (typical)622g (1.371 lb)
Spin Speed5,900 RPM
Sustained data transfer rate95Mb/s
Average latency5.1ms
Random read seek time<16.0ms
Random write seek time<16.0ms
I/O data transfer rate300MB/s
Unrecoverable read errors1 in 1014
12V start max current2.0A
Average idle power3.0W
Average operating power5.7W
Maximum start current, DC2.0
Ambient Temperature
Maximum operating temperature change20°C per hour
Maximum nonoperating temperature change30°C per hour
Operating Shock (max)70 Gs for 2ms
Nonoperating Shock (max)350 Gs for 2ms
Acoustics (Idle Volume)1.9 bels
Acoustics (Seek Volume)2.0 bels

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Weight: 1.8 lb

Warranty: 1 Year DiscTech

New Open Box

Condition Levels Explained

The product is new, either in resealed factory packaging or replacement packaging. (Typically on hard drives this means that the drives have been re-bagged).The item may be a customer returned item.

1 Year DiscTech Warranty

Product Warranties Explained

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