PV-Cables Multi-Contact MC4 Connector Male, 6mm, 44.1001
PV-Cables Multi-Contact MC4 Solarline 2 Connector Male, 6mm, 44.1001
Multi-Contact MC4 Connector with Boot for 6 to 9mm OD #10 AWG PV Wire Male (-) 32.0017P0001-UR
Male or Female?
At first glance, the distinction between male and female connectors is somewhat counter-intuitive. "Male" or "female" refers to the metal pins within the connectors rather than the actual plastic housing of the connectors.
The housing of the male connector has a large opening at the end, with the actual pin inside. The connector of the female pin, however, has a long tip goes fits into male connector when the two are mated.
If you have any questions before you make a purchase, give us a call so we can help you understand the difference between the two!

