Macintosh PowerBook Duo 250 Macintosh PowerBook Duo 250

Macintosh PowerBook Duo 250 Datasheet

In 1993, Apple took the tech world by storm with the introduction of its groundbreaking addition to the Macintosh PowerBook series – the PowerBook Duo 250. This remarkable notebook, designed, manufactured, and sold by Apple, was a true trailblazer, setting the stage for a new era in computing. Although it had a relatively short lifespan, the PowerBook Duo 250 left an indelible mark in Apple’s history, reminding us of the company’s innovative spirit and unwavering commitment to excellence.

On that memorable day, October 21, 1993, Apple unveiled the PowerBook Duo 250 to the public, captivating tech enthusiasts and professionals alike. With a starting price of $2,500, the PowerBook Duo 250 offered an impressive array of features that set it apart from its contemporaries. Equipped with a 33 MHz Motorola 68030 processor, a 9.1″ monochrome LCD display, and a choice between a 120 MB or 200 MB hard drive, this notebook was truly ahead of its time.

One of the key highlights of the PowerBook Duo 250 was its remarkable versatility. It was not only a laptop but also doubled as a desktop computer. Users could easily dock the notebook into a dedicated Duo Dock, transforming it into a full-fledged desktop setup. This innovative feature allowed professionals to seamlessly transition between workstations, catering to their dynamic needs.

Underneath its sleek exterior, the PowerBook Duo 250 housed impressive hardware for its time. The 33 MHz Motorola 68030 processor ensured snappy performance, enabling users to tackle demanding tasks with ease. The active matrix (TFT) 640×400 4-bit grayscale display delivered crisp visuals, enhancing the overall user experience. With 4 MB of RAM, upgradable to 24 MB, the PowerBook Duo 250 offered sufficient memory to handle multitasking efficiently.

Despite its relatively short stint in the market, the PowerBook Duo 250 left a lasting impact. It served as a testament to Apple’s commitment to pushing boundaries and revolutionizing the tech industry. The PowerBook Duo line paved the way for future advancements, setting the stage for the remarkable innovations we enjoy today.

As we reflect on the PowerBook Duo 250 after 30 years, it’s awe-inspiring to see how far technology has come. While the PowerBook Duo 250 may seem outdated by today’s standards, it remains a symbol of Apple’s pioneering spirit and relentless pursuit of excellence. This notebook serves as a vital milestone in the evolution of portable computing, inspiring future generations of innovators to push boundaries and redefine what’s possible.

The PowerBook Duo 250 holds a special place in Apple’s rich history, embodying the company’s ethos of innovation and excellence. This pioneering notebook, introduced in 1993, showcased Apple’s unwavering commitment to delivering cutting-edge technology to users. Although its time in the market was short, its impact was profound, leaving an indelible mark on the tech industry. As we celebrate the incredible strides made since then, let us remember the PowerBook Duo 250 as a reminder of Apple’s remarkable journey and the endless possibilities that lie ahead.

Apple PowerBook Duo 250
Source: – Apple PowerBook Duo 250

Macintosh PowerBook Duo 250 Details

IntroducedOctober 21, 1993
DiscontinuedMay 16, 1994
Model Identifier38
Model NumberM1933LL/A
Original Price$2,500
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

PowerBook Duo 250 Tech Specs


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

Storage & Media

Storage120 MB
200 MB


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


Built-in Display9.1″ monochrome active-matrix LCD
Resolutions640 x 400


Graphics CardNone
Graphics MemoryNone
Display ConnectionNone


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


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

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


Original OSSystem Software 7.1
Maximum OSMac OS 7.6.1
FirmwareMacintosh ROM


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

Further Reading and References

Disclaimer: The data presented in this article is under continuous development and has been manually collected from various 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 express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.

Last updated: July 16, 2023