Conner CFS541A 540MB ATA-2 IDE front view Conner CFS541A 540MB ATA-2 IDE front view
Conner CFS541A 540MB ATA-2 IDE front view Conner CFS541A 540MB ATA-2 IDE front view
Conner CFS541A top view Conner CFS541A top view
Conner CFS541A angled view Conner CFS541A angled view
Conner CFS541A label view Conner CFS541A label view
Conner CFS541A 540MB ATA-2 IDE front view
Conner CFS541A 540MB ATA-2 IDE front view
Conner CFS541A top view
Conner CFS541A angled view
Conner CFS541A label view

Conner

Conner CFS541A – 540MB ATA-2 IDE | 3600 RPM | 3.5" | Legacy HDD

$115.00

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

The CFS541A is a 540MB ATA-2 IDE hard drive featuring 3600 RPM, 64KB cache, and 14ms seek time in a 3.5" form factor. Built for early 1990s desktop systems, it is ideal for retro computing projects, legacy system restoration, and vintage PC builds. Compatible with ATA-2 Fast IDE controllers, 40-pin IDE motherboards, and systems requiring low-power consumption drives. This drive offers the enhanced ATA-2 interface with improved data transfer rates over standard IDE, making it suitable for continuous operation in legacy industrial and embedded applications.

All products from Anand International ship brand new and factory sealed. Volume and B2B pricing available for qualified buyers.
Specifications
  • Manufacturer: Conner
  • Model: CFS541A
  • Capacity: 540MB
  • Interface: ATA-2 IDE (40-pin)
  • Spindle Speed: 3600 RPM
  • Cache: 64KB
  • Form Factor: 3.5"
  • Seek Time: 14ms (average)
  • Latency: 8.3ms (rotational)
  • MTBF: 300,000 hours
  • Drive Type: Desktop IDE
  • Warranty: 90 days
  • Shipping: Free domestic US shipping
  • Condition: Brand New, Factory Sealed
Product Features
  • 540MB capacity with ATA-2 Fast IDE interface
  • 3600 RPM spindle speed for reliable performance
  • 64KB read-ahead cache buffer
  • 14ms average seek time with 3ms track-to-track
  • 3.5" slimline form factor design
  • RLL 1/7 encoding for data integrity
  • Master/slave configuration with jumper settings
  • Low power consumption: 4.9W during operation
  • 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 ATA-2 IDE controllers, 40-pin IDE motherboards, and early 1990s desktop systems including 486DX and Pentium machines. Not compatible with modern SATA interfaces or systems requiring drives larger than 540MB capacity limits.
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.

540MB ATA-2 IDE 3600 RPM 64KB Cache Factory Sealed

Why the CFS541A — Legacy IDE Still Available New HDD

The Conner CFS541A represents mid-1990s IDE drive technology with enhanced ATA-2 Fast IDE interface capabilities. This 540MB drive delivers reliable 3600 RPM performance with 64KB cache buffering for improved data throughput. Built during Conner's prime manufacturing era, it offers authentic period-correct specifications for vintage computing restoration.

Enhanced ATA-2 Fast IDE Interface

Features improved ATA-2 specification with enhanced data transfer rates over standard IDE. Supports Fast IDE mode for better performance in compatible systems.

64KB Cache Buffer System

Integrated read-ahead cache improves sequential data access performance. Segmented buffer design optimizes data flow for typical desktop applications.

3600 RPM Reliable Operation

Balanced spindle motor provides consistent 3600 RPM rotation with minimal vibration. Designed for continuous operation in desktop computing environments.

Period-Correct Legacy Specifications

Authentic 1990s drive specifications ideal for retro computing projects. Features master/slave jumper configuration and standard Molex power connector.

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.