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Seagate

Seagate BarraCuda 7200.10 ST3320620AS 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-7QPJ-C61RG MPN ST3320620AS

A 320 GB 3.5-inch desktop hard drive spinning at 7200 RPM with a 16 MB cache and a SATA 3.0 Gb/s interface

  • PackagingBare Drive
  • InterfaceSATA 3.0Gb/s
  • Capacity320GB
  • RPM7200 RPM
  • Cache16MB
  • Average Latency4.16ms
  • 320 GB capacity stores large media libraries and backups
  • 7200 RPM spindle speed and 16 MB cache accelerate everyday workloads
  • SATA 3.0 Gb/s interface provides up to 3.0 Gb/s transfer rates
  • Perpendicular recording technology increases data density for reliable long-term storage
  • SoftSonic motor and Enhanced G-Force Protection deliver quiet, durable operation

Capacity and interface

The Seagate BarraCuda 7200.10 ST3320620AS is a 320GB 3.5-inch desktop internal hard drive. It spins at 7200 RPM with a 16MB cache and connects through a SATA 3.0Gb/s interface. Perpendicular recording technology increases data density while reducing moving parts for enhanced reliability.

Compatibility check

Verify that your motherboard or controller provides a free SATA 3.0Gb/s port and that the power supply includes a SATA power connector. The 3.5-inch form factor requires a standard drive bay or mounting bracket inside the chassis. Ensure the operating system can recognise a 320GB drive without additional drivers.

Build and daily use

The bare drive ships without cables, brackets or retail packaging, so installers must supply their own SATA data and power cables. SoftSonic motor technology keeps acoustic output low during routine operation. Enhanced G-Force Protection helps defend the mechanism against shock from handling or vibration while the system is running.

Highlights

  • 320 GB capacity stores large media libraries and backups
  • 7200 RPM spindle speed and 16 MB cache accelerate everyday workloads
  • SATA 3.0 Gb/s interface provides up to 3.0 Gb/s transfer rates
  • Perpendicular recording technology increases data density for reliable long-term storage
  • SoftSonic motor and Enhanced G-Force Protection deliver quiet, durable operation

Specifications

BrandSeagate
SeriesBarraCuda 7200.10
ModelST3320620AS
PackagingBare Drive
InterfaceSATA 3.0Gb/s
Capacity320GB
RPM7200 RPM
Cache16MB
Average Latency4.16ms
FeaturesPerpendicular recording technology for maximum drive capacity and reliability
Ultra-fast performance
Superb reliability
Whisper-quiet operation
Enhanced G-Force Protection against handling damage
Clean Sweep calibration and Directed Offline scan diagnostics
RoHS (restriction of hazardous substances) compliant
Form Factor3.5"
Shipping weight0.58 kg
Package size229 × 152 × 76 mm

Questions about this item

Does the bare drive ST3320620AS include cables or mounting brackets, or must they be purchased separately?

The ST3320620AS is supplied as a bare drive only. No SATA data cable, power cable or mounting screws are included; these must be sourced separately for installation.

The 7200.10 series lists several capacities; why choose the 320 GB model over larger or smaller options?

The 320 GB capacity matches the ST3320620AS part number and pairs a 7200 RPM spindle with 16 MB cache, giving a balanced cost-per-gigabyte for typical desktop workloads.

How does the 3.0 Gb/s SATA link translate into real-world throughput inside a desktop PC?

The 3.0 Gb/s interface supports burst transfers up to that rate; sustained read/write speeds are governed by the 7200 RPM platters and 4.16 ms average latency, typically delivering well below the link maximum.

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