Mini PCIe gigabit ethernet adapter not found in lspci

Mini PCIe slots are generally found in older desktop PCs and laptops, but can also see some uses in spaces outside of consumer electronics, like

Delock Converter Key A+E male > 1 x Mini PCIe Slot half size full size with flexible cable Item No : 62848

mini slot machines mini pcie 4G sim) that turns modem into MiniPCI-E and does have SIM card slot on it Using it in my notebook with Huawei ME906 and

mini koelkast met slot mini PCIe slot as pinout is compatible with that since mini PCIe has several pinout options and since we don't have PCIe transceivers we