Macintosh PowerBook Duo 230

On October 19th, 1992, Apple introduced the Macintosh PowerBook Duo 230 to the world as part of their Macintosh PowerBook series of computers. This notebook was designed, manufactured, and sold by Apple from 1992 to 1994, but has since been discontinued on July 27th, 1994. Today, the Macintosh PowerBook Duo 230 is 30 years old and remains a significant piece of Apple’s history.

The PowerBook Duo 230 was equipped with a 33 MHz Motorola 68030 processor, a 9.1-inch monochrome LCD display, 4 MB of RAM, and a hard drive with a capacity of either 80 MB or 120 MB. One of the unique features of this Macintosh was its ability to be set up as a desktop computer by plugging it into a dedicated Duo Dock.

At its launch, the PowerBook Duo 230 was priced at $2,610, making it a high-end option for users looking for a portable Macintosh computer. However, despite its features and capabilities, the PowerBook Duo 230 was eventually discontinued, making way for new and improved models in the PowerBook series.

The Macintosh PowerBook Duo 230 may have been discontinued, but it remains a significant part of Apple’s history, marking a time when the company was pushing the boundaries of portable computing. As the Macintosh PowerBook Duo 230 turns 30 years old, it serves as a reminder of the innovation and advancements that have shaped the technology industry over the years.

Macintosh PowerBook Duo 230
Source: – Macintosh PowerBook Duo 230

Macintosh PowerBook Duo 230 Release Date and Original Price

IntroducedOctober 19, 1992
DiscontinuedJuly 27, 1994
Model Identifier32
Model NumberM4195LL/A (80 MB hard drive)
M4196LL/A (120 MB hard drive)
Original Price$2,610
Weight4.2 Ibs.
1.905 KG
Dimensions1.4” H x 10.9” W x 8.5” D
3.55 cm H x 27.68 cm W x 21.59 cm D

Tech Specs


ProcessorMotorola 68030
Processor Speed33 MHz
Number of Cores1
System Bus33 MHz
Cache0.5 KB L1

Storage & Media

Storage80 MB
120 MB


Built-in Memory4 MB
Maximum Memory24 MB
Memory Slots1 – Duo
Minimum Speed70 ns
Interleaving SupportNo


Built-in Display9″ monochrome passive-matrix reflective LCD
Resolutions640 x 400


Graphics CardNone
Graphics MemoryNone
Display ConnectionNone


Expansion SlotsModem
Dock (152-pin PDS)
Hard Drive InterfaceSCSI


Original OSSystem Software 7.1
Maximum OSMac OS 7.6.1
FirmwareMacintosh ROM


ModemInternal modem/fax card
Floppy PortNone
Audio In1 – 3.5-mm analog input jack
1 – Built-in microphone
Audio Out1 – 3.5-mm analog output jack
1 – Built-in speaker
Display1 – Mini-15

Keyboard and trackpad

KeyboardBuilt-in 64-key (U.S.) or 64-key (ISO) 3.0-mm travel keyboard
TrackpadBuilt-in 25-mm trackball pointing device


System BatteryPowerBook Duo Type I (NiMH)
Backup BatteryUnknown
Maximum Continuous Power25 W
Line VoltageUnknown
Power AdapterUnknown

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Apple Support – Macintosh PowerBook Duo 230: Technical Specifications