Which Hardware FMC ADVISE PMDG737NG

Hi All,

I am almost ready to part with some cash for a FMC to be used with pmdg in fs9.

As far as i see only one available Opencockpits as engravitys no longer supports pmdg i think.

I understand o/c works with pmdg via usb/tv out and a script but what does this mean in the
description:-

"The electronic controls the keyboard and screen. For control the indicator of failure & MSG you can use the Master Card, the module is already prepared for it."

Basically i understand its not backlight but is prepared for it, I would worry about that next.

I have never used master cards yet so am totally this is new to me at the current stage of my build,is this something i need as well as the fmc for it to work with pmdg.

Many Thanks

Steve