The advent of single cell assays, such as 3'GEX and 5'GEX, has revolutionized our research in various fields like oncology, developmental biology, and immunology by enabling detailed gene expression analysis at a single-cell resolution. However, their reliance on fresh samples limited their application. Chromium Fixed RNA profiling- a highly sensitive probe-based technology- overcomes these challenges by allowing sample preservation and transport without the quality losses, simplifying logistics. It enhances efficiency by enabling sample batching and multiplexing. The technology also barcodes up to 1 million cells in 6 minutes, reducing hands-on time and errors. Additionally, its compatibility with FFPE tissues and integration with Visium and Xenium spatial solutions provides comprehensive disease insights, pushing the boundaries of innovation in research and beyond.