The Mini PCI-e standard has a couple of pins dedicated to USB data lines ... of figuring out which pins are used to talk to the SIM card, and soldering them up to a SIM adapter, or directly ...

This showed that the Raspberry Pi would happily talk with a VL805-based USB 3.0 PCIe expansion card, as well as a Realtek RTL8111-based Ethernet card, but not a number of other PCIe cards.

Typically available as an external USB module, for desktop computers, the modem may also be available on a PCI or PCI Express (PCIe) card that plugs into an empty slot on the motherboard.

Asus says this card's dual USB Type-C Thunderbolt 5 ports support ... you will need a spare PCI Express 4.0 x4 slot (or ...

(2) A plug-in card or USB module for a computer that tunes in ... computer's hard disk as a digital video recorder (DVR). Tuners on PCI and PCIe cards also include A/V inputs for connection ...