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Silver 2.5 inch SATA laptop hard drive bare drive

Seagate

Seagate Momentus 7200.1 ST910021AS 100GB 7200 RPM 8MB SATA 1.5Gb/s 2.5" laptop hard drive

SKU CH-4ZY1-K6N41 MPN ST910021AS

A 100 GB 2.5-inch laptop hard drive spinning at 7200 RPM with an 8 MB cache and SATA 1.5 Gb/s interface

  • PackagingBare Drive
  • InterfaceSATA 1.5Gb/s
  • Capacity100GB
  • Cache8MB
  • Average Latency4.2ms
  • RPM7200 RPM
  • 7200 RPM spindle speed delivers responsive notebook performance
  • 8 MB cache helps smooth data bursts during multitasking
  • SATA 1.5 Gb/s interface with NCQ supports efficient command handling
  • SoftSonic FDB motor and QuietStep ramp load provide quiet operation
  • 5-inch 9.5 mm form factor fits standard laptop bays

100 GB 7200 RPM notebook drive

The Seagate Momentus 7200.1 ST910021AS is a 2.5-inch internal hard drive built for laptops that need faster mechanical storage. Its 7200 RPM spindle speed and 8 MB cache suit users upgrading older notebooks or building compact workstations where solid-state capacity is not required.

SATA 1.5 Gb/s interface with NCQ

The drive connects through a SATA 1.5 Gb/s link that supports Native Command Queuing for more efficient command ordering. QuietStep ramp-load technology parks the heads off the platters during spin-down, reducing acoustic noise and improving shock tolerance. A Fluid Dynamic Bearing motor further lowers operating sound and power draw.

9.5 mm height constraint

At 9.5 mm thick the drive fits standard 2.5-inch bays found in most mainstream and workstation-class notebooks. Buyers whose chassis only accepts 7 mm drives cannot use this unit.

Points forts

  • 7200 RPM spindle speed delivers responsive notebook performance
  • 8 MB cache helps smooth data bursts during multitasking
  • SATA 1.5 Gb/s interface with NCQ supports efficient command handling
  • SoftSonic FDB motor and QuietStep ramp load provide quiet operation
  • 5-inch 9.5 mm form factor fits standard laptop bays

Caractéristiques

BrandSeagate
SeriesMomentus 7200.1
ModelST910021AS
PackagingBare Drive
InterfaceSATA 1.5Gb/s
Capacity100GB
Cache8MB
Average Latency4.2ms
RPM7200 RPM
FeaturesSoftSonic FDB motor
QuietStep ramp load technology
Serial ATA with Native Command Queuing
Form Factor2.5"
Height (maximum)9.5mm
Poids d’expédition0.45 kg
Dimensions du colis152 × 102 × 51 mm

Questions sur cet article

How often should the 7200 RPM mechanism with SoftSonic FDB motor be serviced?

The Fluid Dynamic Bearing motor is sealed for life and requires no scheduled lubrication or bearing service.

What limits sustained throughput first — the SATA 1.5 Gb/s link or the 8 MB cache?

The SATA 1.5 Gb/s interface caps continuous transfer at roughly 150 MB/s, well below what the 7200 RPM platters can sustain.

How much heat and noise does the 2.5 inch 7200 RPM drive produce in all-day use?

QuietStep ramp-load technology and the FDB motor keep acoustics at a whisper while reducing power draw for cooler operation.

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