The PowerBook 165c was the third in a series of PowerBook 160 laptops (160, 165, and 165c). The laptop featured a 33 MHz 68030 processor, 4 MB of RAM, either an 80 MB or 160 MB hard drive, and an internal 1.44 MB floppy drive.
The screen was an 8.9-inch color passive-matrix display. The “c” in the PowerBook 165c name referred to the color screen that supported 8-bit color on both the internal display and on an external monitor. The laptop could support a dual or mirrored display, the first PowerBook to offer this capability.
The PowerBook 165c was among the first, but not the first color Macintosh laptop. The PowerBook Duo 210 and 230 were the first color Macintosh laptops that were released four months before the PowerBook 165c.
Source: EveryMac.com.