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Silver 3.5 inch bare SCSI hard drive with 68 pin connector

Seagate

Seagate Cheetah 15K.5 ST3146855LW 147GB 15000 RPM 16MB Cache SCSI Ultra320 68pin 3.5" internal hard drive

SKU CH-1D1K-T9BER MPN ST3146855LW

A 15000 RPM 147GB 3.5-inch SCSI Ultra320 hard drive with 16MB cache and 2ms latency for enterprise servers

  • PackagingBare Drive
  • InterfaceSCSI Ultra320 68pin
  • Capacity147GB
  • RPM15000 RPM
  • Cache16MB
  • Average Latency2ms
  • 15000 RPM spindle speed accelerates data access
  • 16 MB cache buffers bursts for smoother throughput
  • SCSI Ultra320 68-pin interface delivers 320 MB/s bandwidth
  • 147 GB capacity stores critical datasets in a 3.5-inch bay
  • Perpendicular recording technology enables the high areal density

Enterprise Storage Drive

The Seagate Cheetah 15K.5 ST3146855LW is a 3.5 inch internal hard drive built for enterprise servers and storage arrays that require a SCSI Ultra320 68pin connection. It delivers 147GB of capacity at 15000 RPM with a 16MB cache. This new bare drive suits administrators maintaining legacy infrastructure or expanding existing SCSI-based RAID sets.

Interface Compatibility

The single specification that determines fit is the SCSI Ultra320 68pin interface; the drive will only work with controllers and backplanes that provide this exact connector and signalling standard. A 2ms average latency and perpendicular recording technology support the 15000 RPM spindle speed. No other interface or form factor is supported by this model.

Installation Notes

Installation requires a 3.5 inch drive bay and a compatible 68pin SCSI cable with proper termination on the bus. The bare drive ships without mounting rails, cables or termination blocks, so installers must supply these parts. A common issue is mismatched SCSI IDs or missing termination, which prevents the drive from being detected by the controller.

Puntos fuertes

  • 15000 RPM spindle speed accelerates data access
  • 16 MB cache buffers bursts for smoother throughput
  • SCSI Ultra320 68-pin interface delivers 320 MB/s bandwidth
  • 147 GB capacity stores critical datasets in a 3.5-inch bay
  • Perpendicular recording technology enables the high areal density

Especificaciones

BrandSeagate
SeriesCheetah 15K.5
ModelST3146855LW
PackagingBare Drive
InterfaceSCSI Ultra320 68pin
Capacity147GB
RPM15000 RPM
Cache16MB
Average Latency2ms
FeaturesPerpendicular recording technology for maximum capacity
Reduced RAID rebuild times
Highest reliability rating in the industry
Lower total cost of ownership (TCO)
Form Factor3.5"
Peso de envío0.68 kg
Dimensiones del paquete203 × 152 × 51 mm

Preguntas sobre este artículo

How does the 15000 RPM spindle speed affect real-world access times?

The 15000 RPM rotation yields an average latency of 2ms, so the drive can locate data much faster than slower desktop drives.

What practical throughput does the SCSI Ultra320 68-pin interface deliver?

The Ultra320 interface supports a maximum burst transfer rate of 320 MB/s, though sustained speeds depend on the controller and workload.

Will this 3.5-inch bare drive fit a standard desktop drive bay?

Yes, it uses the standard 3.5-inch form factor and mounts with ordinary screws in any compatible bay.

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