421WA4PCR50E20X
Manufacturers：
Conec
Description：
D-Sub Connector Plug, Male Pins 21 (17 + 4 Power) Position Through Hole Solder
421WA4SCM41B30X
Manufacturers：
Conec
Description：
D-Sub Connector Receptacle, Female Sockets 21 (17 + 4 Power) Position Panel Mount Solder Cup