Connecting Arduino to PC through Slimline SATA instead of USB? I removed the DVD-RW from my laptop and want to use the new area as an IO port instead. There is an Arduino Nano with me which can fit into the emptied out drive space and there are some easy to connect IO headers with me.

The only (major) problem is how can i connect the Arduino to the slimline SATA port of the DVD drive. There are some SATA to USB converters available in the market, but will they work? (as i am trying to connect it the other way around)

Is there any possible way to connect the Arduino to the SATA port, and even if i would be able to connect it, would i be able to use it as a regular Arduino as if it were connected to a USB port?
No, there is no way of connecting an Arduino to a SATA port. You require USB or UART. SATA is a specific dedicated port, whereas USB is, as the name suggests, Universal. So USB can become SATA but SATA can never become USB.