pcie in pci slot
Wireless WAN (WWAN) slot cover and PCI Express Mini ...
Most ThinkPads have a WWAN slot. In older ThinkPads, the WWAN slot is a mini-PCI or mini-PCIe slot. In newer ThinkPads, the WWAN slot is a 2242 M.2 slot.
bios - What is this boot option?
"IBA GE Slot xx" means there's an Intel NIC with a boot ROM in PCI/PCIe slot xx, where "slot xx" may be an actual PCI/PCIe expansion slot or an onboard motherboard component.
PRIME Z390-A｜Bo Mạch Chủ
The PCIEX4 slot becomes unavailable when a device is installed in the M2D_SB connector. - 1 x PCI Express x16 slot, supporting PCIe 3.0 and ...