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.

Along with an integral 5G LTE modem sporting dual SIM slots for primary and backup mobile network connections, it can use two ...

Enter the isolated USB null-modem. The device consists of two USB Communication Device Class, or CDC chips, creating a USB serial port for each attached computer. The TX and RX lines are cross ...