IBM DDRS-34560 4.5GB Ultra2 SCSI hard drive front view IBM DDRS-34560 4.5GB Ultra2 SCSI hard drive front view
IBM DDRS-34560 4.5GB Ultra2 SCSI hard drive front view IBM DDRS-34560 4.5GB Ultra2 SCSI hard drive front view
IBM DDRS-34560 4.5GB Ultra2 SCSI hard drive front view
IBM DDRS-34560 4.5GB Ultra2 SCSI hard drive front view

IBM

IBM DDRS-34560 – 4.5GB | Ultra2 Wide SCSI 68-Pin | 7200RPM | 3.5" | Legacy HDD

$145.00

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

The DDRS-34560 is a 4.5GB Ultra2 Wide SCSI hard drive featuring 7200RPM, 512KB cache, and 7.5ms average seek time in a 3.5" form factor. Built for 1990s enterprise and workstation systems, it is ideal for legacy server maintenance, vintage computing restoration, and industrial automation systems. Compatible with Ultra2 Wide SCSI controllers, IBM RS/6000 systems, and workstations requiring 68-pin SCSI drives. This Ultrastar 9ES series drive employs advanced MRX head technology and PRML digital channel for enhanced reliability in continuous operation environments.

All products from Anand International ship brand new and factory sealed. Volume and B2B pricing available for qualified buyers.
Specifications
  • Manufacturer: IBM
  • Model: DDRS-34560
  • Capacity: 4.5GB
  • Interface: Ultra2 Wide SCSI 68-Pin
  • Spindle Speed: 7200 RPM
  • Cache: 512KB
  • Form Factor: 3.5"
  • Seek Time: 7.5ms average
  • Latency: 4.2ms
  • MTBF: Not specified
  • Drive Type: Internal Hard Drive
  • Warranty: 90 days
  • Shipping: Free domestic US shipping
  • Condition: Brand New, Factory Sealed
Product Features
  • Ultra2 Wide SCSI interface with 68-pin connector
  • 7200 RPM spindle speed for fast data access
  • 512KB cache buffer for enhanced performance
  • Magnetoresistive Extended (MRX) head technology
  • Partial Response Maximum Likelihood (PRML) digital channel
  • No-ID sector formatting for increased capacity
  • S.M.A.R.T. monitoring support
  • Enhanced error correction with on-the-fly recovery
  • 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 Ultra2 Wide SCSI controllers, IBM RS/6000 workstations, Power Systems, and legacy servers with 68-pin SCSI interfaces. Not compatible with narrow SCSI controllers, SATA systems, or modern interfaces without SCSI adapters.
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.

4.5GB Ultra2 SCSI 7200RPM 512KB Cache Factory Sealed

Why the DDRS-34560 is the right legacy enterprise drive

Part of IBM's acclaimed Ultrastar 9ES series, this drive represents mid-1990s enterprise storage technology at its peak. With Ultra2 Wide SCSI interface delivering up to 80MB/s transfer rates and 7200RPM performance, it provided exceptional speed for its era. The advanced MRX head technology and PRML channel made it ideal for mission-critical applications requiring continuous operation reliability.

Ultra2 Wide SCSI Performance

68-pin connector supports up to 80MB/s transfer rates with backward compatibility to earlier SCSI standards. Enhanced bus utilization and reduced system overhead compared to narrow SCSI implementations.

Enterprise-Grade 7200RPM Speed

High-performance 7200RPM spindle with 7.5ms average seek time delivers fast access to critical data. 512KB cache buffer reduces latency for frequently accessed files and applications.

Advanced MRX Head Technology

Magnetoresistive Extended heads provide superior areal density and reliability over conventional thin-film heads. Combined with PRML digital channel for precise data recovery and error correction.

Legacy System Compatibility

Perfect replacement for IBM RS/6000 workstations, Power Systems, and industrial controllers requiring authentic period-correct storage. Maintains system integrity for vintage computing and automation applications.

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.