What does the X4 mean in an PCIe Gen X4 NVME drive?

Lenovo ThinkSystem SR650 V3 Server Product Guide > Lenovo Press m 2 nvme slot Supports 7th 6th Generation Intel® Core™ Processors; Dual Channel DDR4, 2 DIMMs; Ultra-Fast with PCIe Gen2 x2 & SATA mode support; 8-channel HD Audio m24 slot wallet Re: Windows 11 doesn't recognize an NVMe in a pcie slot after upgrade · @Rabasirap Well, after a few weeks of experimenting myself, the

m2 sata slot NVMe is a storage and transfer protocol specifically designed for high-performance, non-volatile storage media · is an SSD form factor that