Supported System Software: 7.1.1, 7.5, 7.5.1, 7.5.3
SCSI: HDI-30
Serial Ports: 1
Sound Output: stereo 16 bit.
ADB: 1
Ethernet: AAUI-15
Machine Gestalt ID: 72
Minutiae:
Japanese model which is functionally a 540c with a cool jet black case.
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.
10.4” color active matrix LCD - 16 bit (thousands colors) Display.
One of the configurations sold by Apple contains 12MB of memory. This configuration requires the removal of the factory-installed 8MB memory module in order to upgrade to a larger capacity memory module.
Original Enabler: PowerBook 550 enabler
Serial Port with the phone icon supports synchronous modems, with handshaking on both the output and input.