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Silver 3.5 inch bare SCSI hard drive with 80-pin connector

HGST

HGST HUS103073FL3800 74GB 10000 RPM 8MB SCSI Ultra320 80pin 3.5" internal hard drive

SKU CH-ZA7J-QTR1X MPN HUS103073FL3800

74 GB 3.5-inch drive spins at 10000 RPM with 8 MB cache over SCSI Ultra320 80-pin interface

  • PackagingBare Drive
  • InterfaceSCSI Ultra320 80pin
  • Capacity74GB
  • RPM10000 RPM
  • Cache8MB
  • Average Seek Time4.3ms
  • 10,000 RPM spindle speed reduces data-access latency
  • 3 ms average seek time accelerates random I/O operations
  • 99 ms rotational latency improves transactional throughput
  • SCSI Ultra320 80-pin interface fits legacy enterprise systems
  • 74 GB capacity in 3.5-inch form factor for dense deployments

HGST Ultrastar 10K300 74GB SCSI Drive

This 3.5 inch internal hard drive uses a SCSI Ultra320 80-pin interface and spins at 10000 RPM with an 8MB cache. It is a new bare drive from the Ultrastar 10K300 series, model HUS103073FL3800, offering 74GB of storage for compatible enterprise systems. Average seek time is 4.3ms and average latency is 2.99ms.

Suits legacy SCSI servers; not for modern PCs

The drive fits servers or workstations that natively support the SCSI Ultra320 80-pin connection and require a 10000 RPM mechanism. Builders without a matching SCSI host adapter or backplane cannot install this unit, and the 74GB capacity does not meet current bulk-storage needs. Some motherboards are not compatible with the SCSI interface.

SCSI Ultra320 80-pin interface decides fit

The single specification that determines whether this is the correct part is the SCSI Ultra320 80-pin interface; the system must provide that exact connector and protocol. Without it the drive will not function, regardless of the 10000 RPM speed or 74GB capacity.

Highlights

  • 10,000 RPM spindle speed reduces data-access latency
  • 3 ms average seek time accelerates random I/O operations
  • 99 ms rotational latency improves transactional throughput
  • SCSI Ultra320 80-pin interface fits legacy enterprise systems
  • 74 GB capacity in 3.5-inch form factor for dense deployments

Specifications

BrandHitachi GST
SeriesUltrastar 10K300
ModelHUS103073FL3800 (08K2476)
PackagingBare Drive
InterfaceSCSI Ultra320 80pin
Capacity74GB
RPM10000 RPM
Cache8MB
Average Seek Time4.3ms
Average Latency2.99ms
FeaturesSome motherboards are not compatible with the SCSI interface. Please confirm which interface is appropriate for your system!
Proven drive design for superior quality and reliability.
Form Factor3.5"
Shipping weight0.79 kg
Package size203 × 152 × 51 mm

Questions about this item

How do I connect the 80-pin SCSI Ultra320 interface to my motherboard?

Plug the 80-pin connector directly into a compatible SCSI Ultra320 backplane or host adapter; the step people miss is verifying the motherboard or controller actually supports SCSI Ultra320 before installation.

What maintenance will the 10000 RPM spindle and 8MB cache require over time?

No scheduled maintenance is needed for the spindle or cache; the drive is sealed, so only monitor SMART data and replace the unit if reallocated sectors or seek errors appear.

At what point does the 4.3ms average seek time become a bottleneck under sustained workloads?

The 4.3ms seek time and 2.99ms latency are fixed mechanical limits; they become the primary bottleneck once the I/O queue depth exceeds what the single actuator can service continuously.

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