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

Seagate

Seagate Cheetah 10K.6 ST3146807LC 147GB 10000 RPM 8MB SCSI Ultra320 80pin 3.5" internal hard drive

SKU CH-FGDC-J7PNR

A 147GB 10000 RPM SCSI Ultra320 80-pin 3.5-inch internal hard drive with 8MB cache and 4.7ms average seek time

  • Total capacity147 GB
  • Interface typeSCSI Ultra320 80pin
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed10,000 RPM
  • Cache memory8 MB
  • 10,000 RPM spindle for rapid data access
  • 7 ms average seek time cuts latency
  • SCSI Ultra320 80-pin interface moves data fast
  • 147 GB capacity stores critical workloads
  • 5-inch form factor fits standard bays

Seagate Cheetah 10K.6 147GB SCSI Drive

The Seagate Cheetah 10K.6 ST3146807LC is a 147GB 3.5-inch internal hard drive spinning at 10000 RPM with an 8MB cache. It uses a SCSI Ultra320 80-pin interface and is supplied as a bare drive. Average seek time is 4.7ms, average write time is 5.3ms, and average latency is 2.99ms.

Who This Suits and Who It Does Not

This drive suits maintainers of legacy servers or storage arrays that require a SCSI Ultra320 80-pin connection and a 3.5-inch form factor. Buyers who need larger capacities or newer interface standards should look elsewhere.

The Deciding Specification

The SCSI Ultra320 80-pin interface is the single specification that determines compatibility; the drive will only function in systems equipped with a matching controller and backplane.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $85.99
Cheaper than about 57% of the 4,938 comparable items (median $107.99).
Total capacity 147 GB
Lower than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $584.97 per TB
Pricier than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineCheetah 10K.6
Model nameST3146807LC
Total capacity147 GB
Performance
Rotational speed10,000 RPM
Average seek time4.7 ms
Mean write time5.3 ms
Mean latency2.99 ms
Storage
Cache memory8 MB
Ports & slots
Interface typeSCSI Ultra320 80pin
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How is the 80-pin SCSI Ultra320 drive installed in a 3.5" bay and what step is often missed?

Mount the bare drive in a 3.5" bay, connect the 80-pin SCA connector to a hot-swap backplane or 68-pin adapter, then set a unique SCSI ID via the jumpers before powering on.

What maintenance or replacement will the ST3146807LC need later?

The 10 000 RPM mechanical assembly and bearings are the primary wear items; plan to replace the drive once SMART reallocated-sector counts rise or seek times exceed the 4.7 ms / 5.3 ms specs.

What limit appears first during sustained workloads on this Cheetah 10K.6?

The 8 MB cache fills quickly under heavy random I/O, so average latency settles at the 2.99 ms rotational limit before the Ultra320 bus saturates.

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