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3 Slot PCI Expansion

Enjoy the benefits of a new computer while protecting your investment in PCI hardware
3 Slot PCI Expansion
3 Slot PCI Expansion
3 Slot PCI Expansion - Front
3 Slot PCI Expansion - Rear View
3 Slot PCI Expansion - Open
3 Slot PCI Expansion - PCIe Slots
PCI Cable and Cards
Express Cards
3 Slot PCI Expansion - Contents
3 Slot PCI Expansion Connected to Mac
3 Slot PCI Expansion
3 Slot PCI Expansion
3 Slot PCI Expansion - Front
3 Slot PCI Expansion - Rear View
3 Slot PCI Expansion - Open
3 Slot PCI Expansion - PCIe Slots
PCI Cable and Cards
Express Cards
3 Slot PCI Expansion - Contents
3 Slot PCI Expansion Connected to Mac
Availability: In Stock
Model: PE3R
Starting at: $1499

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Prices are in USD and do not include shipping, taxes or duties

Enjoy the benefits of a new computer while protecting your investment in PCI hardware

  • Add three PCI slots through a single PCI or PCIe slot
  • Includes host interface card and shielded cable
  • Easy installation, no software required

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 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.


Easy Installation


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.

3 Slot PCI Expansion Connected to PC



  • 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
  • Only 2U when rack-mounted and brackets are included
  • Non-enclosed board sets are available for OEMs and System Integrators to utilize their own enclosure
  • CE Compliant and FCC Class A verified
  • 30 Day Money Back Guarantee
  • RoHS Compliant


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


1-meter PCI expansion cable
Optional 1.5-meter length

Interconnect Bandwidth 255 MB/sec
Black (Steel/Aluminum) 2U Rack-mount
13.1"W x 3.5"H x 16.4"D (19"W with rack ears)
9 lbs or 4.086 kg  
System Cooling  
Two 34CFM fans  
One fan in power supply  
Host Connections and 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
Chassis 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 Compliant
RoHS Compliant
Supported Operating Systems  
30 day money back guarantee
1 year return to factory
Package Contents  

3 Slot - Top View


1. 3 Slot PCI backplane
2. Insulator shield (ESD protection for PCB)
3. Cooling fan
4. Power supply
5. PCI cable
6. Host connection - Choice of (1) Host interface card – comes standard with PCI Express (x1) host card


3 Slot - Rear View

7. PCI card slot opening
8. Cable connector to host computer
9. Power cord socket

3 Slot PCI Expansion - Hardware




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.


"We have had great success using Magma's PCI expansion chassis', with a Sager notebook and Lynx Studio sound cards. We really like the ability to add 2 hard drives for storage in the Magma chassis. All have been rock-solid and have been used with both PCI and ExpressCard interface notebook computers, thus enjoying a long useful life over several computer updates. We are extremely happy with the Magma-Lynx-Sager configuration."


- Harold Blumberg, Owner / Lynx Application, Blumberg Sound Design


"Magma saved our school over $35,000 by giving us the flexibility to use current Pro Tools software with PCIx HD Core and Accel cards. Our instructors can train students with the newest Pro Tools software while still using older hardware. The Magma chassis allows us to utilize our initial investment in Pro Tools HD hardware as long as we possibly can while we plan to upgrade the Digi hardware at some point in the future."


- Mark Kirchner, Chief Academic Officer, Studio West


"Thank you for all your help - you saved us a lot of time and heartache. We now use our Macbook Pro with a Magma PCI 3 slot and Pro tools HD3 (PCI) in it and it works great. Thanks again for your help!"


- Tony Thomas, Audio & Music Production


"I am astonished at how easy it was to get it up and running. I am ecstatic about getting my system running again and saving over $10,000 with the help of your product. I have never installed or removed PCI or PCI-E cards from a computer. I simply followed the instructions that came with the Magma expansion chassis, along with some additional visual help from YouTube. Magma is the way to go!! Today started out as a very stressful day. It will end with a great night's sleep due to the fact that your product did exactly what your company claimed it would."


- Aaron King, Audio & Music Production


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