Storage · The Beige Era · 1985
Apple UniDisk 3.5
UniDisk 3.5 brought Sony-style 3.5-inch disks to the Apple II family, offering far more capacity than 5.25-inch floppies.
Apple UniDisk 3.5: key facts
When was the Apple UniDisk 3.5 released?
The Apple UniDisk 3.5 was released in 1985. Apple discontinued it in 1986.
How much did the Apple UniDisk 3.5 cost?
The Apple UniDisk 3.5 launched at $499 in 1985 — about $1,485 in today’s money (approximate, US CPI).
What are the Apple UniDisk 3.5’s specs?
The Apple UniDisk 3.5 used a N/A, with None of memory and 0.8 MB of storage. It ran Driver / firmware support.
Why does the Apple UniDisk 3.5 matter?
High-capacity 3.5-inch drive for Apple II systems.
Full specifications
| CPU | N/A |
|---|---|
| Cores | — |
| Memory (RAM) | None |
| Storage | 0.8 MB |
| Display | None |
| GPU | N/A |
| Ports | SmartPort |
| Weight | Varies by model |
| Dimensions | 3.5-inch floppy drive |
| Operating system | Driver / firmware support |
| Released | 1985 |
| Discontinued | 1986 |
| Launch price | $499 |
How the Apple UniDisk 3.5 compares to today
This entire device held less data than a single modern phone photo (~4 MB).
Launched at $499 in 1985 — about $1,485 in today’s money (approx., US CPI).
Cross-architecture speed figures are clock-only and approximate; inflation figures use US CPI.
Did you know?
It is the kind of model collectors use to map Apple’s complicated family tree.
Related Storage models
Open the Apple UniDisk 3.5 in the interactive archive →
Last updated: 2026-06-27