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Image Credit:  Unknown Source

Apple Inc.
Image Credit:  Apple Inc.

Introduced: October 19, 1992
Terminated: August 5, 1995

Logic Board
Processor:   none
Processor Speed:   n/a
PMMU:   n/a
FPU:   none
ROM Size:   n/a
Level 1 Cache:   n/a
Level 2 Cache:   none
Expansion Slots:   none
Battery:   none

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Image Credit:  Unknown Source

RAM Type:   n/a
RAM Slots:   0
Min - Max RAM:   n/a
Minimum RAM Speed:   n/a
Install in groups of:   n/a
RAM Sizes:   n/a
Onboard RAM:   none

ADB:   1
USB:   none
FireWire:   none
Video:   DB-15
Floppy:   none
SCSI:   HDI-30
Geoports:   none
Ethernet:   none
AirPort Ready:   No
Mic Type:   Omni
Other ports:   Printer, modem, speaker

Apple Inc.
Image Credit:  Apple Inc.

Standard VRAM:   512K (built-in)
Maximum VRAM:   512K (built-in)

Display Resolution:
  • 512 x 384, 8-bit
  • 640 x 480, 8-bit
  • 832 x 624, 8-bit

Standard CD-ROM:   none
Internal Hard Drive:   none
Floppy Disk Drive:   none

Macworld, December 1992
(Macworld, December 1992) The PowerBook Duo 210, center, could connect to the outside world via the Duo MiniDock, a small, half-moon-shaped extension board that connects to the back of the Duo. Here, the MiniDock connects to a LaserWriter, left, and an external SuperDrive, right.

Operating System
Addressing Modes:   n/a
Original OS:   n/a
Original Enabler:   n/a
AppleTalk Version:   n/a

Compatible MacOS:

Macworld, December 1993
(Macworld, December 1993) The PowerBook Duo line boasted several docking-station options from Apple and third-party companies, including (clockwise from top left) the Apple Macintosh MiniDock, RasterOps DuoMate 16sc, Apple PowerBook Duo Floppy Adapter, Lapis SCSI Dock, and E-Machines Presentor.

Form Factor:   n/a
Dimensions:   2.1 H x 10.6 W x 3.2 D
Weight (lbs):   1.2
Original Price:   $559 US

(Click) Macworld, December 1992, Family Photo: PowerBook Duo 230 (bottom left), Duo Dock with inserted PowerBook Duo 230 (top right) and Duo MiniDock (bottom right).

Apple Inc.
The Apple Catalog, Fall 1993

The Duo MiniDock, introduced in October 1992, is a docking solution used by the PowerBook Duo line of subnotebooks. PowerBook Duo subnotebooks have only two built-in ports: an optional RJ-11 modem port and a serial port for a printer or external modem. The Duo MiniDock adds a wide array of standard Macintosh and PowerBook ports. The Duo MiniDock has 512K built-in VRAM (video RAM) and a DB-15 monitor port. It can be used to drive an external monitor at 8-bit color depth.

Image Credit:  Unknown Source

Image Credit:  Unknown Source

(Click) Additional PowerBook Duo MiniDock Images: