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Silver 3.5 inch bare drive with 80 pin SCSI connector

Seagate

Seagate ST373455LC 73.4GB 15000 RPM 16MB SCSI Ultra320 80pin 3.5" internal hard drive

SKU CH-CATC-YCPQF MPN ST373455LC

A 15000 RPM 3.5-inch SCSI Ultra320 drive with 73.4GB capacity, 16MB cache and 80-pin connector

  • Total capacity73.4 GB
  • Interface typeSCSI Ultra320 80pin
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed15,000 RPM
  • Cache memory16 MB
  • 15,000 RPM spindle cuts average latency to 2 ms
  • 16 MB cache accelerates sustained throughput
  • Ultra320 SCSI 80-pin interface delivers 320 MB/s bandwidth
  • 4 GB capacity in a 3.5 inch low-profile form factor
  • Brand-new bare drive ready for server deployment

73.4GB 15000 RPM SCSI Ultra320 80pin drive

The Seagate Cheetah 15K.5 ST373455LC is a 3.5-inch internal hard drive with a 73.4GB capacity. It spins at 15000 RPM and includes a 16MB cache. The drive connects via a SCSI Ultra320 80pin interface and measures 1.0 inch in height. It is supplied as a bare drive in new condition.

Suited for legacy SCSI Ultra320 systems

This drive fits servers or workstations that require a 3.5-inch SCSI Ultra320 80pin device with a 15000 RPM spindle speed. Buyers who need a larger capacity or a different interface standard cannot use this drive. Systems without a compatible SCSI Ultra320 80pin controller will not support this unit.

SCSI Ultra320 80pin interface

The single specification that decides compatibility is the SCSI Ultra320 80pin interface. The host system must provide an 80-pin SCSI Ultra320 connection for this drive to function. No other interface type is supported by this model.

How it compares

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

Price $165.99
Pricier than about 63% of the 4,938 comparable items (median $107.99).
Total capacity 73.4 GB
Lower than about 98% of the 2,372 comparable items (median 2 TB).
Price per TB $2,261.44 per TB
Pricier than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineCheetah 15K.5
Model nameST373455LC
Total capacity73.4 GB
Performance
Rotational speed15,000 RPM
Mean latency2 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSCSI Ultra320 80pin
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.66 kg
Package size147 × 102 × 25 mm

Questions about this item

Will the 3.5 inch 1.0 inch low-profile drive fit my standard 3.5 inch bay?

The drive uses the standard 3.5 inch form factor with a 1.0 inch low-profile height so it fits any regular 3.5 inch internal bay.

What is the correct SCSI ID and termination step that installers often miss on the 80-pin Ultra320 interface?

Set a unique SCSI ID with the jumpers and ensure the last device on the bus has active termination or the host adapter provides it.

How long do the mechanical bearings typically last at 15000 RPM before the drive needs replacement?

Enterprise 15000 RPM drives are rated for continuous operation and commonly run for several years; replace when SMART reallocated sectors rise or unusual noise appears.

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