3 Slot PCI Expansion

3 Slot PCI Expansion

3 slot PCI expansion chassis

Protect your investment and keep your PCI cards in commission with our 3 slot PCI expansion chassis. Expand the life of your PCI cards by keeping them protected and running in optimal conditions.

Key Features

  • Cooling Dedicated Fan
  • Slots 3 PCI slots
  • Power 550 watt
  • Speed 255MB/sec
  • Extras RoHS compliant

3 slot PCI expansion chassis

3 Slot PCI Expansion

Part # PE3R / PE3R-3.3

Need to upgrade your server or desktop computer?  Don’t want to lose your investment in your specialized PCI cards that won’t fit in your new computer? You can install practically any PCI card into the Magma PCI Expansion System and connect it through a PCI Express slot on your computer.

Prolong Your Investment

Magma’s 3 Slot PCI Expansion System provides a simple, cost-effective solution for expanding the capability of practically any computer, especially as PCI Express becomes the industry standard, the number of available PCI slots has been reduced or completely eliminated. Many companies have invested a lot time, energy and money in solutions built around conventional PCI hardware. The Magma 3 Slot PCI Expansion System provides a safe “migration path” to PCI Express while protecting your investment in PCI cards.

Save Time, Money and Trouble

The expansion chassis consists of a host interface card, a cable and a chassis. The expansion chassis is automatically configured by the System BIOS making all of the slots appear transparent within the host computer.

Cost-Effective Migration and Increased I/O Capacity

Magma expansion solutions provide a cost-effective migration path to new computers while maintaining a consistent PCI configuration. In addition, Magma products significantly increase (I/O) capacity and scalability. Multiple expansion systems can be combined to provide an almost unlimited number of PCI slots* to a single computer. This type of scalability is especially useful in industries such as Telecom, Data Acquisition, Video Monitoring, Server Storage and Manufacturing Test Fixtures.


  • Increase the number of PCI slots without replacing your computer
  • Attach full-height PCI cards to computers with low-profile slots or PCI Express slots
  • The only solution for adding multiple PCI cards to mobile computers
  • Multiple expansion systems can be connected to a single computer
  • Keep your PCI configuration consistent making computer upgrades easy
  • Proven method to increase PCI capability without losing performance


  • Connects to desktop and laptop computers
  • 3 slot PCI 64-bit Backplane
  • All slots support full-length or shorter universal and legacy 5 volt only PCI cards (optional 3.3V only available)
  • Quiet cooling for hot PCI cards
  • All Slots support full length (12.283”) or shorter PCI cards
  • Versatile black enclosure can be rack-mounted or stacked on a tabletop under your computer or monitor
  • Non-enclosed board sets are available for OEMs and System Integrators to utilize their own enclosure
  • Only 2U when rack-mounted and brackets are included

* Prices are in USD and do not include shipping or taxes.
** Customers outside US/Canada can order through a Worldwide Reseller.
  • We accept all major credit cards:
  • Credit Cards Accepted

3 Slot PCI Expansion Specifications

PE3R 3 Slot PCI Expansion System with PCIe host card (universal slots)
PE3R-3.3 3 Slot PCIe to PCI Expansion (with 3.3V keyed slots
SUBEC54 ExpressCard/54 module
SUBEC34 ExpressCard/34 module
SUBCBL1.5HF 1.5 meter cable
  • 3 PCI slots (64-bit/33MHz)
  • PCI Local Bus Specification: Revision 2.2
  • PCI Bridge Architecture Specification: Revision 1.2
Cable 1-meter PCI expansion cable (optional 1.5-meter length)
Interconnect Bandwidth 255 MB/sec
Material Black (Steel/Aluminum)
Rackmount 2U Rack-mount
Dimensions 13.1"W x 3.5"H x 16.4"D (19"W with rack ears)
Weight 9 lbs or 4.086 kg
System Cooling
  • Two 34CFM fans
  • One fan in power supply
Host Connection & Power Consumption
Universal PCI 32/33 0.63W max; 5V @ 0.125A
Low Profile PCI (64/33) 0.86W max; 3.3V @ 0.25A
x1 PCI Express® 0.69W max; 3.3V @ 0.21A
CardBus (PCMCIA) 0.42W max; 3.3V @ 0.125A
ExpressCard 34 or 54 0.81W max;3.3V @ 0.21A;1.5V @ 0.08A
Power Supply
  550W Power Supply
  AC Input: 100-240VAC, 10,0A
  Input Frequency: 50-60HZ
  Input Current: 10.0A Max
  DC Output: 550Watts Max
  • +12V 36.0A maximum
  • -12V 3.0A maximum
  • +3.3V 28.0A maximum
  • +5V36.0A maximum
  • +5VSB 3.0A maximum
  Total power on +3.3V and 5V must not exceed 200W max
Ambient Temperature 0º to 50º C
Storage Temperature -20º to 60º C
Relative Humidity 5% to 85% non-condensing
  100,000 hours
Regulatory Compliance
FCC Class A Verified
CE Certified
RoHS Compliant
Supported Operating Systems
  • Windows
  • Mac OS X
  • Linux
  • Solaris
30 day money back guarantee
1 year return to factory
Package Contents
  • 3 Slot PCI backplane
  • Insulator shield (ESD protection for PCB)
  • Cooling fan
  • Power supply
  • PCI card slot opening
  • Cable connector to host computer
  • Power cord socket
Hardware Included
  • PCI cable
  • Host connection - Choice of (1) Host interface card – comes standard with PCI Express (x1) host card

3 Slot PCI Expansion Frequently Asked Questions

Is the power supply auto switching?

Yes, all Magma power supplies are auto switching.

Is it rack mountable?

Yes, this unit is rack mountable via the rack ear provided. It will be stationary in the rack.

Is it Pro Tools compatible?

Yes, this unit does work with Pro Tools systems.

Does it work with Mac and Windows?

This unit works with both Mac and Windows operating systems.

Do I need drivers?

No drivers are necessary for this unit.

3 Slot PCI Expansion Docs and Drivers

Looking for more information to download or print? Product drivers? Below you will find everything from data sheets to warranties. If you still cannot find what you are looking for, please contact Magma directly and we will assist you.


Drivers and Utilities:

If you are having trouble with your product installation please go to our drivers and utilities knowledge base.
If you still can't find what you are looking for, please contact us through our customer support hub.

Where to buy the 3 Slot PCI Expansion

Magma sells its products through a worldwide network of outstanding dealers and resellers. Purchase your Magma product today by finding the reseller closest to you and contacting them for pricing and availability. If you have product or sales questions about any Magma product, our resellers will be available to answer them.