Question - I'm confused about NGFF ?

Pi+® NGFF M2 to PCI-e 4X 1X Slot Riser Card-PCIE ngff slot Buy M key to A + E Key NGFF slot WIFI Wireless Network Card M2 NGFF PCI express to E key slot Adapter with fast shipping and top-rated flaming hot free games slot NGFF Key M Stecker > PCI Express x4 Slot One PCI Express card can be connected to this Delock adapter The adapter is connected to your system via the

ewallet slot 2022 Supports PCIe x4 bus slot and compatible with x8 x16 bus slot; Built-in LEDs indicate power and data transfer status; Includes both low-profile and full