Seagate ST318406LW 18.4GB Ultra160 SCSI front view Seagate ST318406LW 18.4GB Ultra160 SCSI front view
Seagate ST318406LW 18.4GB Ultra160 SCSI front view Seagate ST318406LW 18.4GB Ultra160 SCSI front view
Seagate ST318406LW top view Seagate ST318406LW top view
Seagate ST318406LW angled view Seagate ST318406LW angled view
Seagate ST318406LW 18.4GB Ultra160 SCSI front view
Seagate ST318406LW 18.4GB Ultra160 SCSI front view
Seagate ST318406LW top view
Seagate ST318406LW angled view

Seagate

Seagate ST318406LW – 18.4GB | Ultra160 SCSI 68-Pin | 10000RPM | 3.5" | Enterprise HDD

$199.95

Brand New, Factory Sealed | In Stock | Bulk Orders Available

The ST318406LW is an 18.4GB Ultra160 SCSI hard drive featuring 10,000RPM spindle speed, 4MB cache, and 5.2ms average seek time in a 3.5" form factor. Built for late 1990s and early 2000s enterprise systems, it is ideal for server workloads, database applications, and high-performance workstations. Compatible with Ultra160 SCSI controllers and systems requiring 68-pin SCSI connectivity. This Cheetah 36ES features embedded-servo technology that eliminates periodic recalibration interruptions, providing consistent high-throughput performance critical for continuous enterprise operation.

All products from Anand International ship brand new and factory sealed. Volume and B2B pricing available for qualified buyers.
Specifications
  • Manufacturer: Seagate
  • Model: ST318406LW
  • Capacity: 18.4GB
  • Interface: Ultra160 SCSI 68-Pin
  • Spindle Speed: 10,000RPM
  • Cache: 4MB
  • Form Factor: 3.5"
  • Seek Time: 5.2ms average
  • Latency: 3.0ms average
  • MTBF: 1.6 million hours
  • Drive Type: Enterprise
  • Warranty: 90 days
  • Shipping: Free domestic US shipping
  • Condition: Brand New, Factory Sealed
Product Features
  • Ultra160 SCSI interface with 68-pin connector
  • 10,000RPM spindle speed for high-performance access
  • 4MB cache buffer for enhanced throughput
  • Embedded-servo technology eliminates recalibration delays
  • Enterprise-grade reliability with 1.6M hour MTBF
  • S.M.A.R.T. monitoring and Drive Self Test capability
  • Hot-plug compatible design for server environments
  • Premium Cheetah 36ES series for demanding applications
  • Direct replacement for legacy systems requiring SCSI connectivity
  • 90-day Anand International warranty on all legacy stock
  • Free domestic US shipping included
  • Volume and B2B pricing available for qualified buyers
Compatibility

Compatible with servers and workstations featuring Ultra160 SCSI controllers, 68-pin SCSI backplanes, and legacy enterprise systems from the early 2000s era. Not compatible with modern SATA, SAS, or IDE/PATA interfaces.
Shipping & Returns
  • Free Shipping: We currently offer free Economy Shipping within the continental U.S. with no minimum order required. Expedited shipping is available at standard carrier rates.
  • Same-Day Shipping: Order placed before 2PM PST will ship the same day. Orders received after this time will ship the following business day.
  • Hassle-Free Returns: If you're not completely satisfied with your purchase, simply return it within 10 days for a hassle-free refund or exchange.

18.4GB Ultra160 SCSI 10,000RPM 5.2ms Seek Factory Sealed

Why the ST318406LW is the right Enterprise HDD

The Cheetah 36ES represents Seagate's enterprise-focused storage solution from the Ultra160 SCSI era. With 10,000RPM performance and embedded-servo technology, this drive delivers consistent high-speed access without the interruptions common in earlier drives. The 1.6 million hour MTBF and enterprise-grade design made it ideal for mission-critical server applications requiring maximum uptime and reliability.

Ultra160 SCSI High-Speed Interface

68-pin Ultra160 SCSI connectivity delivers up to 160MB/s transfer rates with reliable differential signaling for enterprise server environments.

10,000RPM Enterprise Performance

High-speed spindle provides 5.2ms average seek time and 3.0ms latency for rapid data access in demanding server workloads.

Embedded-Servo Reliability Technology

Advanced servo technology eliminates periodic recalibration interruptions, ensuring consistent performance for audio/video and continuous operation applications.

Cheetah 36ES Series Heritage

Part of Seagate's premier enterprise line featuring 1.6M hour MTBF, S.M.A.R.T. monitoring, and hot-plug capability for mission-critical deployments.

New Old Stock with 90-Day Warranty

Available as brand new, factory sealed old stock units from Anand International with a 90-day warranty. Ideal for legacy system maintenance, vintage computing restoration, and hard-to-find replacement needs.

Frequently Asked Questions

Frequently asked questions for SCSI, including information on usage, configuration, and compatibility.

1. What is a SCSI hard drive?

A SCSI (Small Computer System Interface) hard drive is a legacy enterprise storage device that connects using parallel ribbon cables. SCSI was widely used in servers, workstations, and storage arrays before newer technologies like SAS and SATA became standard.
2. What systems are SCSI hard drives compatible with?

SCSI drives are designed for older servers, RAID controllers, and storage arrays that have SCSI interfaces. They are commonly used today to maintain or repair legacy IT infrastructure.
3. What’s the difference between SCSI and SAS?

SCSI uses parallel communication and bulky ribbon cables, with speeds up to 320 MB/s. SAS (Serial Attached SCSI) is the modern successor, offering serial communication, smaller connectors, dual-port redundancy, and speeds up to 24 Gb/s.
4. Can SCSI hard drives still be used in modern systems?

Most modern computers don’t have SCSI ports. To use a SCSI drive, you’ll need a compatible SCSI controller card or an external enclosure designed for parallel SCSI.
5. What capacities are available for SCSI hard drives?

SCSI hard drives were typically available in capacities ranging from a few gigabytes to several hundred gigabytes. Larger capacities are rare compared to modern SATA and SAS drives.
6. Are SCSI hard drives hot-swappable?

Yes, many SCSI drives used in enterprise servers were hot-swappable when paired with a compatible RAID backplane or enclosure. This allowed replacement without shutting down the system.
7. Why are SCSI hard drives still used today?

SCSI hard drives remain important for maintaining legacy servers, specialized equipment, and industrial systems where upgrading to newer storage technologies isn’t possible or practical.