Mac Quadra 900 / WGS 95 Mac Quadra 900 / WGS 95

Macintosh Workgroup Server 95 Datasheet

In the early 1990s, Apple made a significant stride in the world of server computers with the introduction of the Workgroup Server 95. Aimed at small businesses and workgroups, this server marked a crucial moment in Apple’s history as it ventured into the realm of server hardware and software. Now, 31 years later, the Workgroup Server 95 stands as a nostalgic reminder of Apple’s early foray into the server market.

Launched on March 22, 1993, the Workgroup Server 95 boasted impressive specifications for its time. Equipped with a 33 MHz Motorola 68040 processor, this server offered a significant upgrade in processing power compared to its predecessors.

Users could choose between 16 MB, 32 MB, or 48 MB of RAM, catering to varying performance needs. Storage options ranged from a 230 MB, 500 MB, 1 GB, or 2 GB hard drive, providing ample space for data-intensive operations. The inclusion of a CD-ROM drive and a 1.44 MB floppy drive further enhanced the server’s versatility.

While the Workgroup Server 95 offered compelling features and capabilities, its starting price of $7,590 made it a considerable investment for small businesses. However, for those who could afford it, the server became an indispensable tool for streamlining operations and facilitating collaboration within workgroups.

One noteworthy aspect of the Macintosh Workgroup Server 95 was its compatibility with Apple’s Unix-based operating system, A/UX. While it could run the Mac OS, the server truly came into its own when operating A/UX, offering a full suite of features. This distinction led to debates about whether the WG Server 95 could even be considered a Macintosh, despite its name.

The expandable tower case, borrowed from the Quadra 900, provided users with a spacious and customizable platform. The server boasted sixteen RAM slots, three drive bays, and five NuBus slots, allowing for extensive expansion options. The inclusion of a PDS card with cache options (128k, 256k, or 512k) and a secondary SCSI bus further enhanced its performance capabilities. Some configurations even included a pre-installed DDS-DC 4 mm tape drive, enabling seamless data backup and retrieval.

Despite its strengths, the WGS 95 was eventually discontinued by Apple. As the server landscape evolved and customer demands shifted, Apple made the strategic decision to focus on other products and services. However, Mac Workgroup Server 95’s legacy as one of Apple’s early ventures into the server market remains intact.

The Workgroup Server 95 holds a special place in Apple’s history as one of the company’s first forays into server hardware and software. Its robust specifications and compatibility with A/UX set it apart from traditional Macintosh computers of the time. The server’s expandability and versatile design made it a valuable asset for small businesses and workgroups, despite its higher price tag.

Today, the Workgroup Server 95 serves as a nostalgic reminder of Apple’s pioneering spirit and its willingness to explore new horizons. While the server may no longer be a part of Apple’s product lineup, its impact on the company’s trajectory is undeniable. As we reflect on the 31-year anniversary of this remarkable server, we can appreciate the role it played in shaping the Apple we know today.

Macintosh Quadra and Workgroup Server
Source: – Macintosh Quadra and Workgroup Server

Workgroup Server 95 Details

IntroducedMarch 22, 1993
DiscontinuedApril 3, 1995
Model Identifier26
Model NumberN/A
Order NumberM6855LL/A
Original Price$7,590
Weight36.8 Ibs.
16.692 KG
Dimensions18.6” H x 8.9” W x 20.6” D
47.24 cm H x 22.6 cm W x 52.32 cm D

Mac WGS 95 Tech Specs


ProcessorMotorola 68040
Processor Speed33 MHz
Number of Cores1
System Bus33 MHz
Cache8 KB L1
CoprocessorBuild-in FPU

Storage & Media

Storage230 MB
500 MB
1 GB
2 GB
Media1 – CD-ROM
1 – 1.44 MB Floppy
1 – DAT tape drive (Optional)


Built-in Memory16 MB
32 MB
48 MB
Maximum Memory256 MB
Memory Slots16 – 30 pin SIMMs
Minimum Speed80 ns
Interleaving SupportNo


Built-in DisplayNone


Graphics CardNone
Graphics Memory1 MB – 2 MB
Display Connection1 – DB-15


Expansion Slots5 – NuBus
1 – PDS (Cache Bus)
Hard Drive InterfaceSCSI


SCSI2 – DB-25
Floppy PortNone
Audio In1 – 3.5-mm analog input jack
Audio Out1 – 3.5-mm analog output jack
Display1 – DB-15


Original OSA/UX 3.0.1
Maximum OSA/UX 3.1.1
FirmwareMacintosh ROM


Backup Battery3.6 V lithium
Maximum Continuous Power303 W
Line Voltage100 V – 240 V AC

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: July 2, 2023