I have an old laptop which I would like to use as a secondary monitor for another laptop. While this is typically not possible, I just realized that my old laptop has a ExpressCard slot. It is a Toshiba Satellite A500 18R.
In Amazon I have found ExpressCard adaptors for USB 3.0 and HDMI to USB 3.0 adaptors. I was wondering if by plugging everything I would be able to use the Toshiba laptop as a secondary monitor.
Does anyone know if that would even be possible?