The Raspberry Pi 4, on the other hand, is the predecessor of the Raspberry Pi 5. It was released in 2019, just a few months before the world shut down due to COVID-19.

In the Pi 4, the versatile GPIO connector remains unchanged from previous versions. Part of the Pi's original appeal for its target demographic is its low $35 price.

To achieve the task of interfacing now-vintage IDE devices with the Raspberry Pi, [Manawyrm] elected to use the single board computer’s GPIO pins to get the job done. 23 pins are required, with ...