Combination (or Hybrid) D-Subminiature connectors are made to standard d-sub sizes. For the most part, standard d-sub backshells will fit a Combo-D. ITT Cannon and Amphenol both have tables in their catalogs that give the shell sizes for the more popular layouts. The table below is a condensed version. For full details please refer to the connector manufacture's documentation. Approximate equivelant collumn refrences standard size d-sub connectors (not high density types). Links to ITT's and Amphenol's D-Sub catalogs are below.