The MDM-21SL1P is a microminiature metal shell connector from ITT Cannon's Micro-D coaxial/power product line, engineered for reliable interconnection in demanding aerospace, defense, and industrial applications. This 21-contact connector features a shell diameter of 1.085 inches (27.56 mm) maximum and supports flexible contact arrangements combining coaxial, signal, and power lines within a single compact housing. The connector accommodates power contacts rated at 13 amps at 24V rms with AWG #16 stranded wire, and standard coaxial contacts using RG178 white cable, providing versatility for mixed-signal and power distribution requirements. With its microminiature design and proven reliability over fifty years of ITT Cannon innovation, the MDM-21SL1P is ideal for space-constrained systems requiring robust multi-function interconnection in harsh environments.