+CONNECTOR 50mil4socket m50-31-4 smt no M50-3130445 digikey 952-3584-ND
+CONNECTOR 50mil8socket m50-31-8 smt no M50-3130845 digikey 952-3587-ND
+CONNECTOR 50mil4pin 50mil4pin throughhole no M50-3530442 digikey 952-3600-ND
+CONNECTOR 50mil8pin 50mil8pin throughhole no M50-3530842 digikey 952-3603-ND