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Silver 3.5 inch bare drive with 80 pin SCSI connector

Seagate

Seagate Cheetah X15 ST318452LC 18.4GB 15000 RPM 8MB SCSI Ultra320 80pin 3.5" internal hard drive

SKU CH-STV8-B3810 MPN ST318452LC

A 15,000 RPM SCSI Ultra320 drive with 18.4 GB capacity and 3.6 ms seek time for high-performance servers

  • Total capacity18.4 GB
  • Interface typeSCSI Ultra320 80pin
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed15,000 RPM
  • Cache memory8 MB
  • 15000 RPM spindle speed cuts average seek time to 3.6ms
  • 8MB cache buffers bursts for smoother I/O throughput
  • SCSI Ultra320 80-pin interface delivers 320MB/s bus bandwidth
  • 3D Defense System protects data integrity during heavy workloads
  • 4GB capacity in a 3.5-inch form factor fits standard drive bays

Legacy SCSI Storage Drive

The Seagate Cheetah X15 ST318452LC is a new 3.5-inch internal hard drive with an 18.4GB capacity. It spins at 15000 RPM and uses a SCSI Ultra320 80pin interface with an 8MB cache. The drive is supplied as a bare unit without accessories.

Suits Legacy Server Maintenance

This drive fits administrators maintaining or repairing older servers and workstations that require a SCSI Ultra320 80pin connection. Buyers building modern systems or needing higher capacity storage for current applications should look elsewhere.

Interface Determines Compatibility

The SCSI Ultra320 80pin interface is the single specification that decides whether this drive works in a given system. Only motherboards or controllers with a matching 80-pin SCSI Ultra320 connector can accept this drive.

How it compares

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

Price $156.99
Pricier than about 61% of the 4,938 comparable items (median $107.99).
Total capacity 18.4 GB
Lower than about 99% of the 2,372 comparable items (median 2 TB).

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Specifications

Product
Brand nameSeagate
Product lineCheetah X15
Model nameST318452LC
Total capacity18.4 GB
Performance
Rotational speed15,000 RPM
Average seek time3.6 ms
Mean latency2 ms
Storage
Cache memory8 MB
Ports & slots
Interface typeSCSI Ultra320 80pin
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.91 kg
Package size152 × 102 × 51 mm

Questions about this item

What maximum throughput does the SCSI Ultra320 80pin interface cap at in practice?

The SCSI Ultra320 80pin interface caps at 320 MB/s in practice.

What drive bay and connector spacing does the 3.5-inch 80pin SCSI form factor need to fit?

It needs a standard 3.5-inch drive bay and an 80-pin SCA-2 backplane connector for hot-plug mounting.

How is the SCSI ID set on the ST318452LC during installation, and what step is often missed?

Set the SCSI ID using the jumper block on the drive before connecting it; the step often missed is verifying the ID is unique on the bus.

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