Apple Powerbook DUO Doc- New in the Box

Apple Antique Vintage Powerbook DUO Doc- New in Box

Was purchased for Powerbook Duo 270C.  It works with the Duo 210, 230, 250, 270c, 280, 280c, and 2300c.  I have had the unit in my basement since about 1993.  What a shame, I was saving it for my retirement, now im retired and lost interest.  Just sold my 270C.

Duo Dock

This was the largest and most expensive dock for the PowerBook Duo and the only form-factor offered exclusively by Apple. Unlike the other docks, or "port replicators" that plugged into the back of other laptops, the Duo Dock pulled the laptop inside the dock's metal and plastic case via an internal sliding mechanism (similar to that of a VHS player). The dock turned the PowerBook Duo into a full-size, AC-powered, fully functional desktop computer with all the standard ports.^[1]

Like a desktop computer, the dock could physically support a heavy, high-resolution CRT display on top. The Duo Dock included a floppy drive on the side, two NuBusexpansion slots, an optional floating point unit (FPU), level 2 cache, a slot for more VRAM to enable more colors at higher resolutions, and space for a second hard drive.^[1]  While the laptop's LCD display obviously could not be opened when inside the dock, additional NuBus video cards could be installed to drive up to three monitors.

The PowerBook Duo was a line of small subnotebooks manufactured and sold by Apple Computer from 1992 until 1997 as a more compact companion to thePowerBook line. Improving upon the PowerBook 100's portability (its immediate predecessor and Apple's third smallest laptop), the Duo came in seven different models. They were the Duo 210, 230, 250, 270c, 280, 280c, and 2300c, with the 210 and 230 being the earliest, and 2300c being the final incarnation before the entire line was dropped in early 1997.