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.

Before USB ports became standard on PCs, several devices connected through a serial port. They're obsolete in many ways, but they still see some use.

Learn what a USB to Serial adapter is used for, when you might need one, and whether installing a driver is required for it to work properly.

To say that the RTL-SDR project was revolutionary might be something of an understatement. Taking a cheap little USB gadget and using it as a Software Defined Radio (SDR) to explore the radio spect… ...

This post shows how to install PL2303 (Prolific) driver on Windows 11 & what to do if Prolific PL2303 USB-to-Serial driver is not working.

Also known as an RS-232 port, serial ports provide very slow speeds and have been superseded by USB on desktop computers.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.

Locate USB Controllers: In the Device Manager, scroll down and expand the "Universal Serial Bus controllers" category. Access USB Port Properties: Right-click on an entry named "USB Root Hub ...