Apple DuoDisk 5.25″ Drive Explained

On May 1st, 1984, Apple introduced a new external floppy disk drive to the market – the Apple DuoDisk 5.25-inch Disk Drive. This revolutionary device was designed specifically for use with the Apple II computer series and featured two 5 1⁄4-inch floppy drives, placed side-by-side in a single plastic case.

The DuoDisk was a game-changer for Apple users, as it allowed for double the storage capacity of the traditional Disk II drive. This meant that users could store more data, programs, and files without the need for multiple floppy disks.

At its launch, the DuoDisk 5.25-inch had a price tag of $795, making it a high-end accessory for Apple users. Despite its cost, the DuoDisk quickly became a popular choice among Apple II enthusiasts and professionals who needed extra storage space.

38 years later, the Apple DuoDisk 5.25-inch may seem outdated and obsolete in the age of digital storage and cloud computing. However, it remains a significant piece of technology in Apple’s history and a reminder of the innovation and progress that has been made in the field of storage.

The DuoDisk was a significant step forward in the evolution of storage technology, and it paved the way for the development of larger and more advanced storage devices. Today, it serves as a reminder of the progress that has been made in the field of storage, and it remains a valuable piece of technology for those who still use the Apple II computer series.

Apple DuoDisk 5.25″ Details

Introduced	May 1, 1984
Discontinued	Unknown
Order Number	A9M0108
Original Price	$795
Colors	Beige
Weight	Unknown
Dimensions	Unknown

System Requirements

• Apple II computer series

Connections

Connection	1 – DB-19
Ports	None

Further Reading and References

• Disk II – Wikipedia
• DuoDisk (A9M0108) (PDF) – Mirrors Apple2
• Using the DuoDisk with the Apple IIGS – Apple Support
• Vintage Magazine Disk Drive Comparison (PDF) – 1000BIT
• Apple II DuoDisk 5.25 Disk Drive – A9M0108 – MyOldMac

Disclaimer: The data presented in this article is under continuous development and has been manually collected from a variety of sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without any express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the information that is published. Any warranties relating to this information are hereby disclaimed.

Last updated: March 12, 2023