Differences Between M2 Cards M2 Slots Keys Sizes and Types

m 2 slot with pcie x4 lanes   Dan m2 sata slot

SATA SSDs and SSDs that use two PCI Express lanes tend to use keys B and M to maximize compatibility, since both connectors can deliver both

Default is using 4 lanes but SSD will also work in x2 mode But with slower data transfer speeds But do not be confused with PCI lane slot , and the On the contrary, the L-series among others can only support cards using the PCIe standard in the WWAN slot

kitchenaid 2 slice long slot toaster 2 slots with x4 PCIE lanes each  2 SSD drives utilize up to four PCIe lanes With PCIe , they achieve almost 4,000MBs PCIe: Universal interface for many computer components