We know, you’ve already got a USB to serial adapter ... With the ability to be directly plugged into a RS-232 port, this adapter will certainly catch the eye of retrocomputer enthusiasts.

Just as the USB port on your phone can serve as a serial connection ... from printers to audio devices to MIDI adapters to webcams. If you can wrap your head around what a Pi Zero could do ...

Also known as an RS-232 port, serial ports provide very slow speeds and have been superseded by USB on desktop computers. USB-to-serial adapters are available for old peripherals. DB (D-Sub ...