Seagate ST318404LW 18.4GB Ultra160 SCSI front view Seagate ST318404LW 18.4GB Ultra160 SCSI front view
Seagate ST318404LW 18.4GB Ultra160 SCSI front view Seagate ST318404LW 18.4GB Ultra160 SCSI front view
Seagate ST318404LW top view Seagate ST318404LW top view
Seagate ST318404LW angled view Seagate ST318404LW angled view
Seagate ST318404LW 18.4GB Ultra160 SCSI front view
Seagate ST318404LW 18.4GB Ultra160 SCSI front view
Seagate ST318404LW top view
Seagate ST318404LW angled view

Seagate

Seagate ST318404LW – 18.4GB Ultra160 SCSI 68-Pin | 10,000 RPM | 3.5" | Enterprise HDD

$225.00

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

The ST318404LW is an 18.4GB Ultra160 SCSI hard drive featuring 10,000 RPM, 4MB cache, and 5.2ms seek time in a 3.5" form factor. Built for late 1990s enterprise server systems, it is ideal for high-performance workstations, database servers, and mission-critical storage applications. Compatible with Ultra160 SCSI controllers, Adaptec SCSI cards, and legacy server platforms requiring 68-pin wide SCSI connectivity. The drive features automatic SCSI ID configuration and advanced error correction for continuous enterprise operation in demanding server environments.

All products from Anand International ship brand new and factory sealed. Volume and B2B pricing available for qualified buyers.
Specifications
  • Manufacturer: Seagate
  • Model: ST318404LW
  • Capacity: 18.4GB
  • Interface: Ultra160 SCSI
  • Spindle Speed: 10,000 RPM
  • Cache: 4MB
  • Form Factor: 3.5 inch
  • Seek Time: 5.2ms
  • Latency: 3ms
  • MTBF: 300,000 hours
  • Drive Type: Enterprise Internal Hard Drive
  • Warranty: 90 days
  • Shipping: Free domestic US shipping
  • Condition: Brand New, Factory Sealed
Product Features
  • Ultra160 SCSI interface with 160MB/s transfer rate
  • 10,000 RPM high-performance spindle speed
  • 4MB cache buffer for faster data access
  • 68-pin wide SCSI connector
  • Automatic SCSI ID configuration
  • Enterprise-grade reliability design
  • Low voltage differential (LVD) signaling
  • GMR head technology for improved performance
  • 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 Ultra160 SCSI controllers, Adaptec SCSI host adapters, legacy server systems requiring 68-pin wide SCSI, and enterprise workstations from the late 1990s era. Not compatible with modern SATA/SAS controllers, consumer desktop systems, or standard 50-pin narrow SCSI 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 10K RPM 5.2ms Seek Factory Sealed

Why the ST318404LW is the right Enterprise HDD

The Seagate Cheetah 18XL represents the fourth generation of Seagate's enterprise storage leadership, delivering 45% performance improvement over previous generations. With 10,000 RPM spindle speed and Ultra160 SCSI interface, it provided cutting-edge performance for late 1990s server environments. This drive established the foundation for high-performance enterprise storage with automatic SCSI configuration and advanced error correction capabilities.

Ultra160 SCSI Performance

160MB/s transfer rate with low voltage differential signaling ensures maximum throughput for demanding server applications. Advanced SCSI command queuing optimizes multi-user access patterns.

10,000 RPM Enterprise Speed

High-speed spindle delivers 5.2ms average seek time and 3ms rotational latency. Purpose-built for continuous operation in mission-critical environments.

68-Pin Wide SCSI Interface

Standard enterprise connectivity with automatic SCSI ID configuration. Compatible with legacy server platforms and high-end workstation SCSI controllers.

Fourth-Generation Cheetah Reliability

Advanced GMR head technology and enterprise-grade components ensure reliable operation. Designed for 24/7 continuous duty in server environments.

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.