A CubeSat is a class of small satellite with a form factor of 10 cm cubes. CubeSats have a mass of no more than 2 kg per unit, and often use commercial off-the-shelf components for their electronics and structure. From Wikipedia
The $58 million CubeSat will piggyback on ESA’s EnVision orbiter to map trace gases in the temperate cloud deck 50 kilometers above Venus
