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The Macintosh PowerBook Duo Floppy Adapter (informally referred to as a MicroDock) is a lightweight portable docking device that was developed by Apple Computer and released on October 19, 1992, along with the PowerBook Duo 210 and 230.

Features[]

Though much smaller than the Duo MiniDock, the Floppy Adapter still interfaced with a PowerBook Duo notebook through the custom 152-pin docking connector. Instead of a motor or lever, a small button was used to release the device. The only ports provided were a single Apple Desktop Bus (ADB) port and a HDI-20 port to attach an external floppy drive.[2][3]

Development[]

The circuit board of the Duo Floppy Adapter was approved for electromagnetic compatibility by the Federal Communications Commission on September 2, 1992.[4]

Variants[]

Newer Technology released its own variants of MicroDocks with Ethernet, HDI-30 SCSI, or 8-bit color video out in place of the HDI-20 floppy port.[5]

Supported models[]

The Duo Floppy Adapter can physically fit with and support every released model of the PowerBook Duo line.

References[]

  1. Linzmayer, Owen (2004). Code Names Uncovered. Apple Confidential 2.0: The Definitive History of the World's Most Colorful Company. No Starch Press.
  2. 20 Macs for 2020: PowerBook Duo by Jason Snell, Six Colors. 2020-08-10.
  3. Apple Duo Dock pinout, Pinouts.ru. 2017-05-30.
  4. BCGM7781: Floppy Adapter Board by Apple Inc., FCC.report. 1992-09-02.
  5. Dockのスリープ時の脱着 (Japanese) by まーくん, Linkclub. 1998.

External links[]

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PowerBook Duo series
PowerBook Duo 210 · 230 | 250 · 270c | 280 · 280c | 2300c
Duo Dock · Duo Dock II · Duo Dock Plus | Duo Floppy Adapter | Duo MiniDock | PenLite
Third parties : E-Machines EtherDock · PowerLink Presentor | Newer Technology MicroDock · UltraDock | RasterOps DuoMate
Discontinued in 1997 and superseded by the PowerBook 2400c
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