Macintosh Centris 650 Macintosh Centris 650

Macintosh Centris 650 Datasheet

In the ever-evolving world of technology, anniversaries serve as poignant reminders of just how far we’ve come. Today marks 31-years since Apple unveiled the Macintosh Centris 650, a personal computer that may have been short-lived but left a lasting impact on the tech giant’s history. Introduced on February 10, 1993, with a starting price of $2,700, this impressive machine became a favorite among professionals and tech enthusiasts alike.

At the heart of the Macintosh Centris 650 was a 25 MHz Motorola 68040 processor, a true powerhouse for its time. Accompanied by either 4 MB or 8 MB of RAM and a choice of hard drive capacities ranging from 80 MB to a whopping 500 MB, this computer offered ample storage for its era. In addition to the traditional 1.44 MB floppy drive, the Centris 650 also featured a CD-ROM drive, a cutting-edge inclusion that hinted at the revolutionary future of optical media.

Upon its release, the Centris 650 was a midpoint creation, bridging the gap between the Mac II line and the Quadra series. Despite the initial success and positive reception among users, the Centris models faced an untimely demise, being discontinued just eight months later, on October 21, 1993. Nonetheless, the legacy of the Macintosh Centris 650 endured, becoming a testament to Apple’s pursuit of innovation and advancement in the tech landscape.

One notable advantage of the Centris 650 was its implementation of a higher-speed SCSI bus, a technology that significantly improved data transfer rates. Additionally, the computer showcased accelerated internal video and utilized interleaved memory, enabling a roughly 10% boost in performance. These features rendered the once-popular Quadra 700 obsolete, leading Apple to remove it from its lineup following the Centris series’ debut.

An interesting quirk of the Centris 650 was its shared floppy drive mounting sled with other Apple models like the Mac IIvi, IIvx, Quadra 650, and Power Mac 7100. This design allowed users to repurpose the sled for a hard drive if the need for a floppy drive diminished over time.

One cannot discuss the Macintosh Centris 650 without addressing Apple’s penchant for quirky naming conventions. The “Centris” moniker fell in line with the company’s trend of adopting enigmatic names that sounded significant without revealing much about the product’s identity. Alongside the Centris line, Apple’s marketing efforts also encompassed the Quadra and Performa names. While the Centris branding was short-lived and earned Apple a “Road Apple,” the Centris 650 itself remains a gem for technology enthusiasts.

Despite its untimely discontinuation, the Macintosh Centris 650 continues to maintain its value on the used market, particularly the versions equipped with the full 68040 processor and ethernet capabilities. For collectors and vintage tech aficionados, this powerful computer represents a tangible connection to a time when the boundaries of technology were continually being pushed.

As we celebrate 31 years since the release of the Macintosh Centris 650, it is a perfect opportunity to reflect on the remarkable advancements in the tech industry over the past three decades. What was once considered cutting-edge is now part of the storied past, reminding us that progress is constant in the ever-changing landscape of innovation.

Mac Centris 650
Source: forums.macrumors.com – Mac Centris 650

Macintosh Centris 650 Details

IntroducedFebruary 10, 1993
DiscontinuedOctober 21, 1993
Model Identifier30
Model NumberM1250
Order NumberM1207LL/A (80 MB hard drive)
M1337LL/A (230 MB hard drive)
M1279LL/A (230 MB hard drive and CD-ROM)
Original Price$2,700
Weight25 Ibs.
11.339 KG
Dimensions6” H x 13” W x 16.5” D
15.24 cm H x 33 cm W x 41.91 cm D

Mac Centris 650 Tech Specs


ProcessorMotorola 68040
Processor Speed25 MHz
Number of Cores1
System Bus25 MHz
Cache8 KB L1
CoprocessorIntegrated FPU

Storage & Media

Storage80 MB
230 MB
500 MB
Media1 – CD-ROM
1 – 1.44 MB Floppy


Built-in Memory4 MB
8 MB
Maximum Memory132 MB
136 MB
Memory Slots4 – 72 pin SIMM
Minimum Speed80 ns
Interleaving SupportYes


Built-in DisplayNone


Graphics CardNone
Graphics Memory1 MB
Display Connection1 – DB-15


Expansion Slots3 – NuBus
1 – PDS (Cache Bus)
Hard Drive InterfaceSCSI


SCSI1 – DB-25
Floppy PortNone
Audio In1 – 3.5-mm mono input jack
Audio Out1 – 3.5-mm stereo output jack
Display1 – DB-15


Original OSSystem Software 7.1
Maximum OSMac OS 8.1
FirmwareMacintosh ROM


Backup Battery3.6 V lithium
Maximum Continuous Power230 W
Line VoltageUnknown

Further Reading and References

Disclaimer: The data presented in this article is under continuous development and has been manually collected from various sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.

Last updated: June 30, 2023