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Silver 2.5 inch bare laptop hard drive with circuit board visible

Seagate

Seagate Momentus 7200.4 ST9320423AS 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-VH5P-SEG8Y MPN ST9320423AS

2.5-inch 320 GB laptop drive spins at 7200 RPM with 16 MB cache and SATA 3.0 Gb/s interface

  • PackagingBare Drive
  • InterfaceSATA 3.0Gb/s
  • Capacity320GB
  • Cache16MB
  • Average Latency4.17ms
  • RPM7200 RPM
  • 7200 RPM spindle speed accelerates data access for faster boot and application load times
  • 16 MB cache buffers frequent reads and writes to improve everyday responsiveness
  • SATA 3.0 Gb/s interface provides broad compatibility with 2.5 inch laptop drive bays
  • 320 GB capacity stores documents, media and applications in a single drive
  • G-Force Protection technology parks heads on impact to help safeguard data during drops

320 GB SATA laptop drive

The Seagate Momentus 7200.4 ST9320423AS is a 2.5 inch internal hard drive built for notebooks and compatible 2.5 inch bays. It offers 320 GB of storage on a SATA 3.0Gb/s interface. The 7200 RPM spindle speed and 16 MB cache suit users who want faster load times than a 5400 RPM drive provides.

G-Force Protection and quiet motor

G-Force Protection technology parks the heads during sudden motion to help safeguard data if the laptop is dropped. A fluid dynamic bearing motor reduces acoustic output for quieter operation in thin-and-light chassis. The bare-drive package contains only the drive itself without cables, brackets or installation software.

9.5 mm height constraint

The drive measures 9.5 mm tall, 69.75 mm wide and 100.3 mm long, so it fits standard 9.5 mm drive bays but not ultra-thin 7 mm slots. Average latency is 4.17 ms at 7200 RPM. Buyers needing a thinner profile or a higher-capacity single drive should verify their bay height before ordering.

商品特色

  • 7200 RPM spindle speed accelerates data access for faster boot and application load times
  • 16 MB cache buffers frequent reads and writes to improve everyday responsiveness
  • SATA 3.0 Gb/s interface provides broad compatibility with 2.5 inch laptop drive bays
  • 320 GB capacity stores documents, media and applications in a single drive
  • G-Force Protection technology parks heads on impact to help safeguard data during drops

商品規格

BrandSeagate
SeriesMomentus 7200.4
ModelST9320423AS
PackagingBare Drive
InterfaceSATA 3.0Gb/s
Capacity320GB
Cache16MB
Average Latency4.17ms
RPM7200 RPM
FeaturesImportant Warranty Information
This product is end-of-sale and no longer warranted by the manufacturer. Instead, warranties this product for one year from date of purchase. If you require warranty service after thirty days, please contact Customer Service, not the manufacturer.
Native Command Queuing
Green features:
- Lowest-power 7200-RPM laptop hard drive yet
- Ramp load features improve idle power consumption
State-of-the-art error correction
Fluid dynamic bearing motor
Support for S.M.A.R.T. drive monitoring and reporting
Support for Read Multiple and Write Multiple commands
Form Factor2.5"
Height (maximum)9.5mm
Width (maximum)69.75mm
Length (maximum)100.3mm
出貨重量0.13 kg
包裝尺寸152 × 97 × 25 mm

商品問答

Does the 7200 RPM motor or the 16MB cache require any periodic maintenance or replacement?

No, the 7200 RPM fluid dynamic bearing motor and 16MB cache are sealed inside the drive and need no user maintenance or replacement.

Which limit appears first during sustained transfers — the SATA 3.0Gb/s interface or the 7200 RPM platter speed?

The 7200 RPM platter speed limits sustained throughput before the SATA 3.0Gb/s interface saturates.

How much noise and heat does the 2.5-inch 7200.4 drive produce when running all day?

The fluid dynamic bearing motor keeps noise low, and power draw stays near 5400 RPM-equivalent levels for cool, quiet all-day operation.

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