https://www.systerra.de/PIPXMC.html
The XMC/PMC expansion allows to integrate up to 3/6 XMC or PMC modules. XMC and PMC cards can be mixed on the PIPXMC adapter card according your needs. Any on the market available XMC and PMC mezzanine card (ADC/DAC, FPGA, Avionics XMC/PMC, Graphics, Network, ...) can be used and easily be integrated...
PIPXMC Datasheet (PDF)
https://www.systerra.de/downloads.php?dokument=6300