I have two groups: A and B.
Group A consists of products (#1,#2,#3..) that use component X or Y (but not both)
All products in group A experienced component X or Y broken.
Group B consists of products (#10,#11,#12,...) that use the same component X or Y
All products in group B did not experience component x or Y broken.

What I'm trying to test (and know) is if there's a X is more likely to break than Y, or vice versa.

In group A, half of products used component X and failed, and the other half used component Y and failed. Note that group A and B are two subsets of the whole manufactured goods. In other words, out of the whole manufactured good, I sorted products with broken component to group A and the remaining to group B.