The Apple Macintosh LC 550 features a 33 MHz 68030 processor, 5 MB of RAM, either an 80 MB or a 160 MB hard drive, and a 2X CD-ROM drive in a relatively compact all-in-one case with a 14" color display. With the exception of processor speed and configuration options, the LC 550 is identical to the LC 520 it replaced.

The consumer version of the LC 550 is the Performa 550 series.

• Tech Specs
• Ports

Click on the category for related details. The most commonly needed info is "open" by default, but all info is important.

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Introduction Date:

February 2, 1994

Discontinued Date:

March 23, 1995

Details:

The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended. Also see: All Macs introduced in 1994.

Processor Speed:

33 MHz

Processor Type:

68030

Details:

This model has a 32-bit processor and a 32-bit data path.

Processor Upgrade:

Third-Party*

FPU:

68882 (Optional)

Details:

*A variety of third-party processor upgrades and accelerators were available.

System Bus Speed:

33 MHz

Cache Bus Speed:

N/A

Details:

N/A

ROM Type:

Macintosh ROM

ROM Size:

1 MB

Details:

N/A

L1 Cache:

0.5k

L2 Cache:

N/A

Details:

N/A

RAM Type:

72-pin SIMM

Min. RAM Speed:

80 ns

Details:

N/A

Standard RAM:

5 MB

Maximum RAM:

36 MB

Details:

This model can be upgraded to 36 MB of RAM with a single 32 MB SIMM. Also see: Actual Max RAM of All G3 & Later Macs.

Motherboard RAM:

4 MB

RAM Slots:

1

Details:

N/A

Video Card:

Dedicated*

VRAM Type:

VRAM SIMM*

Details:

*This model has 512k of onboard VRAM and a single slot that accepts a 256k 80 ns VRAM SIMM.

Standard VRAM:

512k*

Maximum VRAM:

768k*

Details:

*512k of VRAM is soldered onboard. A single VRAM slot accepts a 256k VRAM SIMM for a maximum total of 768k of VRAM.

Display Support:

14" Color

Resolution Support:

640x480

Details:

14" Sony Trinitron RGB display.

2nd Display Support:

Single Display*

2nd Max. Resolution:

Variable*

Details:

*The Macintosh LC 550 can support a second display with the addition of an LC PDS video card. By default, it only supports a single display.

Standard Hard Drive:

80 MB, 160 MB*

Int. HD Interface:

SCSI

Details:

*By default, the Macintosh LC 550 is configured with either an 80 MB or 160 MB internal SCSI hard drive.

Standard Optical:

2X CD-ROM

Standard Disk:

1.44 MB (Auto)

Details:

N/A

Standard Modem:

None

Standard Ethernet:

None

Details:

N/A

Expansion Slots:

1 LC PDS

Expansion Bays:

None

Details:

There are no free expansion bays.

Case Type:

All-in-One

Form Factor:

Macintosh LC 520

Details:

N/A

Apple Order No:

N/A

Apple Subfamily:

Macintosh LC 550

Details:

N/A

Apple Model No:

M1640

Gestalt ID:

80

Details:

Please note that these identifiers commonly refer to multiple models. Also see: All Macs with the M1640 Model Number and 80 Gestalt ID. For more about identifiers and how to locate them on modern Macs, please refer to EveryMac.com's Mac Identification section.

Battery Type:

3.6V Lithium

Battery Life:

N/A

Details:

N/A

Original Mac OS:

7.1

Supported Mac OS:

7.1-7.5.1, 7.5.3-7.6.1

Details:

Earlier and later versions of the Macintosh System/Finder and Mac OS are not supported.

Dimensions:

17.9 x 13.5 x 16.5

Avg. Weight:

40.5 lbs (18.4 kg)

Details:

In inches - height by width by depth, (45.5 cm, 34.3 cm, 41.9 cm).

Original Price (US):

US$1200

Est. Current Retail:

N/A

Details:

Photo Credit: Apple Computer, Inc.

Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.

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Video (Monitor):

None

Floppy (Ext.):

None

Details:

N/A

ADB:

2

SCSI:

1 (DB-25)

Details:

N/A

Serial (Standard):

2

Serial (Geoport):

None

Details:

Serial ports are marked by printer and modem icons.

Modem:

None

Ethernet:

None

Details:

N/A

S-Video Input:

None

S-Video Output:

None

Details:

N/A

Microphone:

1 (PlainTalk)

Sound In:

None

Details:

N/A

Sound Out:

1 (8-Bit Stereo)

Headphone:

1 (Front-Mounted)

Details:

N/A

Security (Lock):

1

Joystick (PC):

None

Details:

N/A

Power:

1

Power Adapter:

N/A

Details:

90V-264V AC, 47-63 Hz Frequency, 40 Max Watts. Icon Credit: Apple Computer, Inc.

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