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Silver 3.5 inch bare hard drive with exposed circuit board

Seagate

Seagate ST3500320NS 500GB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-VQJC-1DVEH MPN ST3500320NS

A 500 GB, 7200 RPM SATA desktop drive with 32 MB cache built for 24/7 enterprise storage

  • PackagingBare Drive
  • InterfaceSATA 3.0Gb/s
  • Capacity500GB
  • RPM7200 RPM
  • Cache32MB
  • Average Latency4.16ms
  • Enterprise-grade reliability built for 24x7 operation
  • 7200 RPM spindle speed enables fast data access
  • 32 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface connects to standard desktop ports
  • 500 GB capacity stores large datasets in a 3.5" form factor

Enterprise-class capacity

The Seagate BarraCuda ES.2 ST3500320NS is a 500GB 3.5-inch internal hard drive built for 24x7 operation in enterprise storage environments. It spins at 7200 RPM with a 32MB cache and connects through a SATA 3.0Gb/s interface. The bare-drive packaging suits system integrators and IT departments deploying arrays or replacing failed units in existing servers.

Sustained-load behaviour

Designed for continuous duty, the drive offers best-in-class rotational vibration tolerance to maintain performance in multi-drive chassis. Average latency sits at 4.16ms, and the 7200 RPM spindle speed supports steady throughput during long write sequences. The 32MB buffer helps smooth burst traffic without throttling under prolonged workloads.

Upgrade context

This model delivers 33 percent more capacity than the earlier Barracuda ES drive while keeping the same 1.0-inch low-profile height. It fits legacy 3.5-inch bays using SATA 3.0Gb/s controllers, making it a direct replacement for older enterprise SATA drives. Buyers needing higher areal density or newer interfaces will not be served by this generation.

Highlights

  • Enterprise-grade reliability built for 24x7 operation
  • 7200 RPM spindle speed enables fast data access
  • 32 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface connects to standard desktop ports
  • 500 GB capacity stores large datasets in a 3.5" form factor

Specifications

BrandSeagate
SeriesBarraCuda ES.2
ModelST3500320NS
PackagingBare Drive
InterfaceSATA 3.0Gb/s
Capacity500GB
RPM7200 RPM
Cache32MB
Average Latency4.16ms
FeaturesKey Advantages
- 1TB drive delivers 33 percent more capacity than the Barracuda ES drive
- 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
- Seagate PowerTrim technology dynamically optimizes power consumption by improving GB/watt by 55 percent and by reducing overall drive power consumption by 20 percent over prior-generation Barracuda ES drives
- Choose SAS for the seamless Tier 2 en
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)146.99mm
Shipping weight0.51 kg
Package size147 × 102 × 25 mm

Questions about this item

How much power does the 7200 RPM ST3500320NS draw during continuous 24x7 operation?

The drive is designed for 24x7 enterprise use with rotational vibration tolerance, though the exact wattage figure is not supplied.

Does the bare drive ST3500320NS include the SATA data and power cables I need to install it?

No, the bare drive packaging means you must supply your own SATA data cable and a SATA power connector from the power supply.

Will the SATA 3.0Gb/s interface on this 3.5" drive work with my older SATA 1.5Gb/s motherboard port?

Yes, the SATA 3.0Gb/s interface is backward compatible with SATA 1.5Gb/s ports, operating at the lower speed.

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