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Silver 3.5-inch SCSI hard drive with 68-pin connector

Seagate

Seagate ST318406LW 18GB 10000 RPM 4MB SCSI 68pin internal hard drive

SKU CH-SVBD-4YB47 MPN ST318406LW

An 18 GB internal hard drive spinning at 10000 RPM with a SCSI 68-pin interface and 4 MB cache

  • Total capacity18 GB
  • Interface typeSCSI 68pin
  • Rotational speed10,000 RPM
  • Cache memory4 MB
  • Fast 10000 RPM spindle speeds up data access
  • 4 MB cache buffers bursts for smoother throughput
  • SCSI 68-pin interface fits legacy servers and workstations
  • 18 GB capacity stores critical OS and application files
  • New condition ensures full manufacturer reliability out of the box

18 GB 10 000 RPM SCSI Drive

The Seagate ST318406LW is an 18 GB desktop internal hard drive that spins at 10 000 RPM with a 4 MB cache. It connects through a 68-pin SCSI interface and is supplied in new condition. The unit is suited for legacy servers or workstations that still require a narrow SCSI storage device.

Who this suits and who should look elsewhere

This drive suits maintainers of older SCSI-based systems that need a direct 68-pin replacement with 18 GB capacity. Buyers whose hardware only accepts newer serial interfaces or larger form factors cannot use this product. It also does not meet requirements for higher-capacity storage or modern RAID arrays.

The specification that decides fit

The 68-pin SCSI interface is the single specification that determines whether this drive will install in your system; the host must provide a matching narrow SCSI connector and controller.

How it compares

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

Price $100.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 18 GB
Lower than about 99% of the 2,372 comparable items (median 2 TB).

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Total capacity18 GB
Performance
Rotational speed10,000 RPM
Storage
Cache memory4 MB
Ports & slots
Interface typeSCSI 68pin
Size & build
Shipping weight0.91 kg
Package size152 × 102 × 51 mm

Questions about this item

What is the spindle speed that defines the drive's sustained throughput ceiling?

The spindle rotates at 10000 RPM, which sets the mechanical limit for continuous data transfer.

How much heat and noise does the 10000 RPM mechanism produce during all-day operation?

The high-speed spindle generates significant heat and audible seek noise, so active cooling in the enclosure is recommended.

Which host interface must the system already provide for this 68-pin SCSI drive to function?

The system needs a SCSI controller with a 68-pin connector; without it the drive cannot communicate.

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