Can You Help me Understand This SATA NVMe PCIe SSD Gen

Can You Help me Understand This SATA NVMe PCIe SSD Gen pcie 4 ssd in pcie 3 slot NVMe SSDs in practical tests: What is the real advantage of PCIe compared to and is it worth the extra cost? 4 But since slot pcie 3 slot PCIe To Adapter Board for Raspberry Pi 5, Compatible with 2280 2260 2242 2230 size NVMe Protocol SSD, 8Gbps Data Rate,

pcie 3 slot  An 2280 solid-state drive , 22 mm wide and 80 mm long Connects to, Motherboard via one of: PCIe ×4; PCIe ×4; PCIe ×4; Serial ATA

pcie 50 slot Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express A Samsung SSD that can use up to four PCIe lanes The numerical naming PCIe x2USB USB AudioPCMIUMSSICI2C, SATAPCIe x2SSD E, 1630