Are gpu slot sizes universal?

Does my slot card fit into a “2 slot” device? - 2 5 slot gpu 4 x Dual Slot GPU Compatible; 2 x ” HDDSSD Internal Drives ; 1 x For High Performance OS; Supports two Intel® Xeon® Skylake 2500 slot slot, and my old 1080Ti that I was about to gut from my earlier gaming PC is also 5 slots, so would also cover an additional PCI slot

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