Military Embedded Systems

OpenVPX & SOSATM Optical and RF Backplanes in 3U & 6U

Eletter Product

Elma Electronic is the leader in OpenVPX and SOSA-aligned backplane designs and manufacturing. Our latest designs support optical and RF apertures (VITA 66 and 67) for high performance connectivity modules. As signal speeds and system complexities increase, customers look to Elma for proven designs. We offer the largest selection of 3U and 6U OpenVPX backplane profiles, in slot counts from 2 to 16, including the newest profiles aligned with the SOSATM Technical Standard.

Elma engineers developed the industry’s first VPX backplanes and we are the innovation leader as signal speeds and system complexities increase. VPX presents design challenges with high layer-count backplanes, and more demanding power and cooling requirements. We tackle these problems with extensive signal integrity testing plus thermal simulation and functional testing to produce the most reliable backplanes and enclosures on the market. That’s why our partners and our customers rely on Elma to address their VPX backplane requirements.  

The latest interactive backplane charts are now available on our website – hover over any backplane profile to see the topology for that particular backplane configuration. Don’t see the one you need? Talk to us about a tailored slot configuration.


  • Support for VITA 66.4 optical, 67.1 RF and 67.3 RF/Optical modules 
  • Designs supporting 1000BASE-BX, 1000BASE-KX, 10GBASE-KX4, 10GBASE-KR, or 40GBASE-KR4 connectivity 
  • Radial clock slot for IEEE 1588 precision timing protocol and network synchronization 
  • Many power and ground designs available standard 
  • Designed and manufactured in the US

Find details on all of our OpenVPX and SOSA aligned backplanes as well as all of the interactive charts here.

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Elma Electronic

44350 S. Grimmer Blvd.
Fremont, California 94538