Introduction Date: March 7, 1989
Discontinued Date: March 11, 1991
Original Mac OS: 6.0.3
Supported Mac OS: 6.0.3-7.5.1, 7.5.3-7.5.5
Apple Order/Model: M5660*
Model Family: M5650
Processor Speed: 16 MHz
Processor Type: 68030
Standard RAM: 1 MB, 4 MB
Maximum RAM: 128 MB*
Processor Upgrade: Third-Party*
FPU: 68882
System Bus Speed: 16 MHz
Cache Bus Speed: N/A
ROM Type: Macintosh ROM
ROM Size: 256k*
L1 Cache: 0.5k
L2 Cache: N/A
RAM Type: 30-pin SIMM*
Min. RAM Speed: 120 ns
Motherboard RAM: None
RAM Slots: 8*
Video Card: Video Card*
VRAM Type: Video Card*
Standard VRAM: 256k, 512k*
Maximum VRAM: 256k, 512k*
Display Support: Up to 3 Displays*
Resolution Support: 512x384, 640x480*
2nd Display Support: Dual/Mirroring*
2nd Max. Resolution: Variable*
Standard Hard Drive: 40 MB, 80 MB*
Int. HD Interface: SCSI
Standard Optical: None

Standard Disk: 1.44 MB (Auto)
Standard Modem: None
Standard Ethernet: None
Expansion Slots: 3 NuBus
Expansion Bays: None
Case Type: Desktop
Form Factor: Macintosh IIcx
Apple Subfamily: Macintosh IIcx
Gestalt ID: 8
Battery Type: 3.6V Lithium
Battery Life: N/A
Dimensions: 5.5 x 11.9 x 14.4
Avg. Weight: 13.6 lbs (6.2 kg)
Original Price (US): US$5369-US$7069
Est. Current Retail: N/A*
Video (Monitor): 1*
Floppy (Ext.): 1 (DB-19)
ADB: 2
SCSI: 1 (DB-25)
Serial (Standard): 2
Serial (Geoport): None
Modem: None
Ethernet: None
S-Video Input: None
S-Video Output: None
Microphone: None
Sound In: None
Sound Out: 1 (8-Bit Mono)
Headphone: None
Security (Lock): 1
Joystick (PC): None
Power: 1
Power Adapter: N/A