Apple sometimes advertises this as a 66 MHz machine, since the clock speed is doubled inside the processor chip. However, all I/O to the processor is done at 33 MHz.
8.4" color active matrix LCD display - 16 bit (thousands of colors)
Has a 152-pin PDS (Processor Direct Slot) connector for connecting to the Duo Docks.
Serial Port with the phone icon supports synchronous modems, with handshaking on both the output and input.