MTC50-JH1-P32 vs MTC50-JH1-R32 vs MTC50-JH1-P21

PartNumber	MTC50-JH1-P32	MTC50-JH1-R32	MTC50-JH1-P21
Description	Rack & Panel Connectors MTC50-JH1-P32	Rack & Panel Connectors MTC50-JH1-R32	Rack & Panel Connectors MTC50-JH1-P21