The four slot GPU tag covers discussions about graphics cards that occupy four expansion slots in a PC case. Content includes testing and benchmarking of large, multi-slot GPUs, often focusing on thermal performance, physical clearance, and compatibility with motherboards and cases. While the tag is not limited to Windows-specific topics, it is relevant to Windows users building high-performance gaming or workstation PCs that require substantial cooling solutions. The tag may also touch on hardware sizing, airflow considerations, and the trade-offs between single-slot and multi-slot GPU designs.