Different front upper suspension mount

I have a base model car, and I'm working on replacing the struts. I noticed that in all of the resources I've used to help me to do this, that my front upper suspension mount is much different than all of the others I've seen. Everything else seems to have one that has three bolts on it, but mine only connects directly to the strut. I can't find anything about this anywhere, and I'm having trouble finding a replacement part for it. Why is mine so different?