1.These are MC4 "X" Branch Connectors.
2.All materials are UL Listed. 
3.This one is has One MC4 Female Connectors and Three MC4 Male Connector. 
4.These are used to connect multiple solar panels or groups of solar panels together in a solar field. 
5.The unique design offers greater directional ease in laying out the the branch lines. 
6.The molded in eyelets allow for easy tie wrapping of the branch connectors to the structure.
7.cable length 5CM 
8.Weight:0.072KG