It is important to note that while the M.2 Rev 5.0 spec focuses on PCIe 5.0, it lays the groundwork for integration. CXL 1.1 and 2.0 run on PCIe 5.0 electricals. While CXL is primarily enterprise-focused today, the M.2 form factor is increasingly viewed as a potential interface for CXL-based memory expansion in high-performance client workstations, and the electrical validation in Rev 5.0 supports this protocol layering.