[Ted] has demonstrated using a common USB to serial adapter as an SDR transmitter. That’s right, using the cheap little UART adapter you’ve almost certainly got sitting in your parts bin right ...

Two ports not enough for your parallel hacking needs? Believe it or not, we’ve also seen a quad USB-to-serial adapter that you can put together, though it’s a considerably more complex circuit.

Add or Remove Programs entry for FTDI USB Serial Converter Drivers. This is a driver pack that allows USB ports to be used to connect to Serial bus devices with a USB - Serial adapter cable.

This file describes all of the currently plugged in USB serial devices. usbserinfo:1.0 driver:v1.4 0: module:keyspan name:"Keyspan 1 port adapter" vendor:06cd product:0119 num_ports:1 port:1 ...