IBM DADA-25400 5.4GB ATA-33 front view IBM DADA-25400 5.4GB ATA-33 front view
IBM DADA-25400 5.4GB ATA-33 front view IBM DADA-25400 5.4GB ATA-33 front view
IBM DADA-25400 top view IBM DADA-25400 top view
IBM DADA-25400 angled view IBM DADA-25400 angled view
IBM DADA-25400 label view IBM DADA-25400 label view
IBM DADA-25400 5.4GB ATA-33 front view
IBM DADA-25400 5.4GB ATA-33 front view
IBM DADA-25400 top view
IBM DADA-25400 angled view
IBM DADA-25400 label view

IBM

IBM DADA-25400 – 5.4GB | ATA-33 IDE | 4200RPM | 2.5" | Laptop HDD

$115.00

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

The DADA-25400 is a 5.4GB ATA-33 hard drive featuring 4200 RPM spindle speed, 512KB cache, and 13ms average seek time in a 2.5" form factor. Built for 1990s laptop systems, it is ideal for vintage computing restoration, legacy system maintenance, and retro hardware projects. Compatible with ThinkPad laptops and systems supporting Enhanced IDE/ATA-4 with 44-pin IDE connectors. This TravelStar 6GT series drive features magneto-resistive heads and load/unload technology for reliable continuous operation in portable computing environments.

All products from Anand International ship brand new and factory sealed. Volume and B2B pricing available for qualified buyers.
Specifications
  • Manufacturer: IBM
  • Model: DADA-25400
  • Capacity: 5.4GB
  • Interface: ATA-33 IDE
  • Spindle Speed: 4200 RPM
  • Cache: 512KB
  • Form Factor: 2.5"
  • Seek Time: 13ms average
  • Latency: 7.1ms
  • MTBF: Not specified
  • Drive Type: Laptop HDD
  • Warranty: 90 days
  • Shipping: Free domestic US shipping
  • Condition: Brand New, Factory Sealed
Product Features
  • TravelStar 6GT series for laptop applications
  • 512KB segmented buffer with write cache
  • Magneto-resistive heads for enhanced data reliability
  • Load/unload mechanism for shock protection
  • Enhanced ECC on-the-fly error correction
  • S.M.A.R.T. monitoring capability
  • ATA-4 compliance with Ultra DMA support
  • 44-pin IDE connector for 2.5" laptop interface
  • Direct replacement for legacy systems requiring IDE/ATA 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 ThinkPad laptops, legacy PC systems with Enhanced IDE/ATA-4 controllers, and vintage computing platforms supporting 44-pin IDE 2.5" drives. Not compatible with SATA systems or modern laptops without IDE support.
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.

5.4GB ATA-33 4200RPM 2.5" Factory Sealed

Why the DADA-25400 — Legacy IDE Still Available New laptop drive

The IBM DADA-25400 represents the TravelStar 6GT generation of laptop hard drives from the late 1990s. With 5.4GB capacity and ATA-33 interface, it provides period-correct storage for vintage laptop restoration projects. The drive features advanced-for-its-era magneto-resistive heads and load/unload technology for enhanced reliability in mobile computing environments.

TravelStar 6GT Technology

Features magneto-resistive heads and load/unload mechanism for enhanced durability in portable computing applications.

512KB Cache Buffer

Segmented buffer with write cache optimizes data transfer performance for laptop computing workloads.

ATA-33 Interface

Enhanced IDE compliance with Ultra DMA support provides fast data transfer for its era with 44-pin laptop connector.

Legacy System Compatible

Perfect for ThinkPad restoration and vintage computing projects requiring period-correct storage solutions.

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 IDE, including information on usage, configuration, and compatibility.

1. What is an IDE hard drive?

An IDE (Integrated Drive Electronics) hard drive is a legacy type of storage device that connects to a computer using a 40-pin ribbon cable and Molex power connector. It was widely used before SATA drives became standard.
2. Can IDE hard drives be used in modern computers?

Most modern PCs do not have IDE ports. However, you can still use an IDE hard drive with a compatible IDE controller card or an IDE-to-SATA/USB adapter.
3. What devices are IDE hard drives compatible with?

IDE hard drives are commonly used in older desktops, servers, DVR systems, legacy industrial equipment, and other electronics that require ATA/100 or ATA/133 interfaces.
4. Are IDE and PATA the same thing?

Yes. IDE is also known as PATA (Parallel ATA). Both terms refer to the same interface standard, which uses wide ribbon cables to connect drives.
5. How do I know if my system supports an IDE hard drive?

Check if your motherboard has a 40-pin IDE connector. If not, you can use an adapter or external enclosure that converts IDE to SATA or USB.
6. What is the maximum capacity of an IDE hard drive?

Most IDE hard drives range from a few hundred megabytes to 500GB, though practical support depends on your system’s BIOS limitations.
7. Can IDE hard drives be used for external storage?

Yes. By using an IDE-to-USB adapter or external IDE enclosure, you can repurpose an IDE hard drive as an external storage device.