Macintosh IIfx
Original
Desktops1990Rare
Apple called it 'wicked fast' in the marketing, and for 1990 the description was honest. At $10,000 retail — more than most cars — the IIfx used dedicated 65C020 co-processors to offload serial and SCSI I/O from the main CPU, custom DRAM timing developed in-house, and a 40 MHz 68030 that was measurably faster than any other Mac available. The most expensive and most powerful 68k Mac Apple ever built.
Reference →Identity
- Manufacturer
- Apple
- Model Number
- M5525
- Gestalt ID
- 6
Dates & Pricing
- Introduced
- 1990-03-19
- Discontinued
- 1992-04-15
- Release Year
- 1990
- Original Price (Low)
- $8,970
- Original Price (High)
- $10,970
- Estimated Value
- $450
Processor
- CPU
- Motorola 68030
- CPU Speed
- 40 MHz
- FPU
- 68882
- Bus Speed
- 40 MHz
- L2 Cache
- 32k
Memory
- RAM
- 4-128 MB
- RAM Max
- 128 MB
- RAM Slots
- 8
- RAM Type
- 64-pin SIMM
Storage & Display
- Storage
- 1.44 MB SuperDrive , optional 80/160 MB SCSI HD
- Graphics
- Video Card
- Screen Size
- N/A
- Display Type
- N/A
- Display Variant
- Desktop
Expansion & Ports
- Expansion Slots
- 6 NuBus, IIfx PDS
- Ports
- Video (Monitor): 1* , ADB: 2 , SCSI: 1 (DB-25) , Serial (Standard): 2 , Sound Out: 1 (8-Bit Mono) , Security (Lock): 1
Software
- Operating System
- 6.0.5
- Min OS
- 6.0.5
- Max OS
- 7.6.1
Physical
- Weight
- 24.0 lbs
- Dimensions
- 5.5 x 18.7 x 14.4
- Battery Type
- 3.6V Lithium x2
eBay Sale Prices
Sales
3
Typical Low
$468
25th %ile
Typical High
$489
75th %ile
Avg / Median
$479
$479 med
Full range: $457–$1.2k across 3 sales
Auction
BIN
BIN + OBO
Median
Typical range
All 3 sales
Apple Macintosh IIfx, Full with RAM, Graphics Card and 2 Network Cards, RARE!
2026-07-13$457
Macintosh IIfx Recapped Computer - 40MHz '030 w/ Keyboard, Mouse & more!
2026-07-05$1.2k
Apple Macintosh IIFX - Tested & Working - Factory Upgrade From II
2026-06-09$500
Something wrong or missing?
Help keep this catalog accurate for everyone.