ExpressBox 16 Basic

Sixteen Slot PCI Express® Expansion System

Magma's ExpressBox 16 is the simplest solution to seamlessly increase the number of PCI Express® slots available to your server or workstation.
SKU: eb16-bx4 / eb16-bx8
Featured, In Defense and Aerospace, Featured, In Industrial Computing

Magma's ExpressBox 16 is the simplest solution to seamlessly increase the number of PCI Express® slots available to your server or workstation.  ExpressBox 16 expands one host PCIe® slot to sixteen slots by extending PCI Express signals over a high-bandwidth x8 or x16 connection to an external Magma enclosure.

ExpressBox 16 consists of a pair of interface cards (x8 or x16), an iPass cable and a 4U rack-mount expansion chassis. The Magma expansion chassis is automatically configured by the System BIOS, with the expansion slots appearing transparently on the host computer.


  • Industrial solution for adding up to sixteen PCI Express slots to one computer
  • Attach full-length PCI Express cards computers with limited card space
  • Daisy chain or fan out multiple expansion chassis to one computer
  • Low profile host card allows for easy installation in low profile computers


  • Easy “Plug and Play” installation
  • Supports peer-to-peer transfers between cards in the expansion chassis to provide full bandwidth potential among I/O cards
  • LEDs on backplane indicate: active link, speed (Gen 1 or Gen 2), partial or complete lane training
  • Industrial 4U rack-mount enclosure
  • Four dedicated cooling fans with thermistor-controlled fan speeds to reduce unnecessary noise
  • Multiple power supply options with auxiliary power connectors to support cards requiring more than 75 Watts
EB16-BX4 ExpressBox 16 - (16) x4 PCIe slots
EB16-BX8 ExpressBox 16 - (14) x8 and (2) x16 PCIe slots
  • PCI Express Bus Specification Revision 2.0
  • PCI Bridge Architecture Revision 1.2
  • PCI Local Bus Specification Revision 2.3
  • (17) PCI Express slots
  • 1 slot dedicated for host link card
  • 16 slots, x4 PCIe
  • (17) PCI Express slots
  • 1 slot dedicated for host link card
  • 14 slots, x8 PCIe
  • 2 slots, x16 PCIe
  3-meter iPass
Interconnect Bandwidth
  • 40Gbps (PCIe x8 Link Gen 2)
  • 80Gbps (PCIe x16 Link Gen 2)
Host Card Power Consumption
x8 PCIe 1.2A @ +3.3V (3.96 watts)
x16 PCIe 1.5A @ +3.3V (5 watts)
Rack-mount 4U Rack-mount
Dimensions 19”W x, 7”H x 20”D
Weight 28 lbs (13 Kg)
  Removable/cleanable air filter
System Cooling
  • (4) 77 CFM Fans - Hot Swappable
Power Supply
  • 850 Watt, 1700 Watt or 850 Watt Redundant
  • 100-240 VAC, 47-63 Hz Power Input
  • 12V @ 60Amps
  • 3.3V @ 33 Amps
Ambient Temperature 0º to 50º C
Storage Temperature -55º to 125º C
Relative Humidity 0% to 90% non-condensing
850W standard power supply 185,600 hours
1700W dual standard power supply 106,600 hours
850W redundant power supply 720,000 hours
Regulatory Compliance
FCC Class A Verified
CE Certified
UL/CUL Listed
Supported Operating Systems
  • Windows
  • Mac OS X
  • Linux
  • Solaris
30 day money back guarantee
1 year return to factory
Package Contents
  • Sixteen PCI Express slots
  • Card hold down bar
  • Cooling fans (Hot-Swappable)
  • Power Supply
  • PCI Express card slot openings
  • Interconnect to computer
  • Power cord socket
Hardware Included
  • 3m iPass cable
  • PCI Express link cards (x8 or x16)

Is the power supply auto switching?

Yes, all Magma power supplies are auto switching.

Does it work with Mac and Windows?

This unit works with both Mac and Windows operating systems.

Can I use it in a server environment?

Yes, this unit will work in a server environment. We also offer a redundant power version.

How many rack spaces does it take up?

This unit is 4U.

Does Magma sell an Auxillary Power Cable for powering of Pro Tools HDX cards?

Yes, the part number is 01-05996-03 and can be purchased online under Replacement Parts.

Support: or 800-438-2724


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