The FPGA Mezzanine Card (FMC™) specifications describes an IO mezzanine module, which shall connect to, but is not limited to, 3U and 6U form factor cards.

This mezzanine module is in a smaller form factor, when compared to PMC/XMC modules and assumes that it will be connected to a FPGA device or other device with reconfigurable IO capability.

This standard describes FMC IO modules and introduces an electro-mechanical standard that creates a low overhead bridge. This is between the front panel IO, on the mezzanine module, and an FPGA processing device on the carrier card, which accepts the mezzanine module.

Note: FMC™ is a trademark of VITA