PCIe m2 SSD in notebook: speeds and general compatibility

Rocket 4 ssds are fast, but still not fast enough yet to max out a PCIE Gen4 M2 slot yet Samsung 980 PRO and a couple others similar to

For example, a PCIe graphics card can be inserted into a motherboard's PCIe slot; however, the Gen 4 card's bandwidth would be

m24 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

m2 pcie slot For instance, a x16 slot with only 4 PCIe lanes is quite common cards using the PCIe standard in the WWAN slot Some notebooks