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Silver 3.5 inch bare hard drive with 68 pin SCSI connector

Seagate

Seagate Cheetah 15K.4 ST336754LW 36.7GB 15000 RPM 8MB SCSI Ultra320 68pin 3.5" internal hard drive

SKU CH-89RQ-VZ57B MPN ST336754LW

A 36.7 GB, 15 000 RPM SCSI Ultra320 drive with 8 MB cache and 3.5 ms seek time

  • PackagingBare Drive
  • InterfaceSCSI Ultra320 68pin
  • Capacity36.7GB
  • RPM15000 RPM
  • Cache8MB
  • Average Seek Time3.5ms
  • 15,000 RPM spindle speed cuts average seek to 3.5 ms
  • 320 MB/s SCSI Ultra320 bus moves large files fast
  • 8 MB cache buffers bursts for smoother throughput
  • 7 GB capacity in a 1.0-inch 3.5" form factor fits tight bays
  • Industry-leading reliability rating protects critical data

Enterprise Server Storage

The Seagate Cheetah 15K.4 ST336754LW is a 36.7GB 3.5-inch internal hard drive built for enterprise servers and legacy workstations. It spins at 15000 RPM with an 8MB cache and connects via a SCSI Ultra320 68pin interface. The bare drive delivers a 3.5ms average seek time and 2ms average latency for high-throughput workloads.

Compatibility Constraints

This drive suits administrators maintaining older SCSI-based arrays or replacing failed units in existing Ultra320 environments. It is not for systems lacking a compatible SCSI Ultra320 68pin host bus adapter or backplane. Buyers needing larger capacities or different physical interfaces must select alternative storage solutions.

Decisive Specification

The SCSI Ultra320 68pin interface is the single specification that determines whether this drive fits the target system. Without a matching 68-pin SCSI controller or backplane, the drive cannot be installed or recognised. Confirm the host interface before purchase.

Points forts

  • 15,000 RPM spindle speed cuts average seek to 3.5 ms
  • 320 MB/s SCSI Ultra320 bus moves large files fast
  • 8 MB cache buffers bursts for smoother throughput
  • 7 GB capacity in a 1.0-inch 3.5" form factor fits tight bays
  • Industry-leading reliability rating protects critical data

Caractéristiques

BrandSeagate
SeriesCheetah 15K.4
ModelST336754LW
PackagingBare Drive
InterfaceSCSI Ultra320 68pin
Capacity36.7GB
RPM15000 RPM
Cache8MB
Average Seek Time3.5ms
Average Write Time4.0ms
Average Latency2ms
FeaturesSome motherboards are not compatible with the SCSI interface. Please confirm which interface is appropriate for your system!
Highest reliability rating in the industry
Low power consumption
Form Factor3.5"
Poids d’expédition0.64 kg
Dimensions du colis147 × 102 × 25 mm

Questions sur cet article

How do I install the ST336754LW into a 3.5" bay and what step is often missed with the 68-pin Ultra320 SCSI connector?

Mount the 1.0-inch high drive in a 3.5" bay, attach the 68-pin Ultra320 SCSI cable, set a unique SCSI ID with the jumpers, and terminate the bus at the last device — the ID and termination steps are the ones most often missed.

What maintenance or replacement will the Cheetah 15K.4 need later?

The 15000 RPM mechanical drive has no user-serviceable parts; plan to replace the entire unit when SMART attributes indicate wear or after the five-year limited period.

What limit appears first under sustained use on the ST336754LW?

The 15000 RPM spindle and 3.5 ms average seek generate heat that typically hits the thermal envelope before the 320 MB/s Ultra320 bus saturates.

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