Help with an Ssd I purchased

I bought the Samsung Ssd 980 pro PCIe 4.0 NVMe m.2 Ssd from best buy and it arrived today. When I was looking for an Ssd I made sure to go to my pcs website and check it it had the right expansion slot and it said the it has a pcie m.2 expansion slot. But when it arrived and I go to put it in I cannot for the life of me find the slot. Am I just dumb or is there actually not a slot?? And if there isn’t one would I be able to return it to them? The package isn’t ripped or damaged except for the spot that was ripped when I got it on my doorstep and I didn’t use it at all. Please help 🙏