The market asks for 112G connectivity. Yamaichi Electronics´ modular YTM Mezzanine concept copes with this need. YTM is probably the most sophisticated 112 Gbps modular Mezzanine concept in the market so far. It combines highest density with total modularity and 112G PAM4 data rate. The modular concept allows the widest range of pin count and stacking heights. It has outstanding signal integrity on all pins and 96pin-blades. The blades can be lined up to 960 pins on a footprint of 30x60mm. This is surprisingly small. The stacking height from 5-10mm can be extended by an interposer up to 40mm.