VITA 93 QMC Form Factor and Details
Watch the video (above), which is part of the Introducing VITA 93 QMC webinar.
In this video, I talk with Mark Littlefield, Senior Manager of Embedded Computing, Elma Electronics; Jan Zimmerman, General Manager, TEWS Technologies; and Matthew Burns, Director of Technical Marketing, Samtec about QMC basics, including architecture and features. The standard defines four form factors (see figure).
Carrier boards can be set up to accommadate any module mix. A carrier board that supports a quad QMC can also handle four singles, two doubles, a triple, plus a single or any combination that uses the one or more sets of connections.
More VITA 93 QMC Video Clips from the Webinar
More VITA 92 Resources
About the Author
William G. Wong
Senior Content Director - Electronic Design and Microwaves & RF
I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.
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I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.
I still get a hand on software and electronic hardware. Some of this can be found on our Kit Close-Up video series. You can also see me on many of our TechXchange Talk videos. I am interested in a range of projects from robotics to artificial intelligence.

Mark Littlefield
Sr. Manager, Embedded Computing Solutions, Elma Electronic
Mark Littlefield is senior manager of embedded computing products and services for Elma Electronic. He’s an active contributor to multiple VITA and SOSA technical working groups, leads the SOSA small-form-factor (SFF) sub-committee, and was co-chair of the VITA 65 OpenVPX working group.
Mark has more than 25 years of experience in embedded computing, where he has held a range of technical and professional roles supporting defense, medical, and commercial applications. He holds bachelor's and master’s degrees in control systems engineering from the University of West Florida, where he wrote his thesis on a neural-net approach to image processing.

Jan Zimmerman
General Manager @ TEWS Technologies
Jan Zimmermann is one of the two General Managers at TEWS Technologies, a Company located in Germany, well known for their commitment providing I/O solutions of highest quality. Together with Tim Tews, he successfully managed the company's succession and is responsible for all aspects of the business, especially its strategy and business development. Jan holds a master’s degrees in business engineering from the Nordakademie in Hamburg (Germany).

Matthew Burns
Technical Marketing Manager @ Samtec
Matthew Burns develops go-to-market strategies for Samtec’s Silicon-to-Silicon solutions. Over the course of 25 years, he has been a leader in design, applications engineering, technical sales, and marketing in the telecommunications, medical, and electronic components industries. Matthew holds a B.S. in Electrical Engineering from Penn State University.