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

What does the X4 mean in an PCIe Gen X4 NVME drive? nvme m 2 slot Transcend's PCIe SSD 220S follows NVMe and utilizes the PCIe™ Gen3 x4 interface, meaning four lanes are used for transmitting and receiving data nvme in pcie slot 2 PCIe NVMe SSD Thanks to the USB4™ compatibility, it can be connected via Thunderbolt™ 3 and 4, as well as the USB Type-

nvme in pcie slot Also, check the transfer speeds—if speeds exceed 550MBs, you're looking at an NVMe SSD and not a SATA SSD Advantages: NVMe SSDs

nvme m2 slot motherboard 2 NVMe SSD such as the relatively affordable and very fast Samsung 970 EVO can live in a PCIe slot, They aren't even interchangeable as merely signifies the form factor in the device's shape and size, whereas NVMe refers to how data