Hi,

It depends on how far you want to go, or intend to go, in the future.

With OpenCockpits it's modular, so if you just want to stay with a few switches then USBKeys may be your answer, if on the otherhand you intend to gradually build a full sim then it might be worth going for the USBExpansion/Mastercard option, and slowly add to that.

Have a read of what each card does, to get an idea  of how far you want to go. With the Mastercard option you can add other cards to it that can give you inputs, outputs, relays or 7seg LED drivers, the options are endless, and all can be configured through the program SIOC which is free.

Regards,
.............Adrian W.

Hi,
the first one is the kit, they supply you with the PCB, all the parts and you build it.

The second one is the fully made up card, just plug 'n' play.

And the last one is just the PCB for those people who wish to completely build their own interface.

Unless you have experience in soldering, I would suggest the second option, as it comes completely built and tested, for just a few Euros/Bucks more than the kit version.

Regards
............Adrian W.

No worries,

don't forget, most of OC's stuff is modular, so you can always add a bit more later, so once you've got a few switches hooked up you'll soon be looking to add a display or two, or throttle quadrant, radio panels, autopilot, FMC, transponder, overhead ................ Oh dear oh dear,  this list is endless.

You'll be back........  

regards
..............Adrian W.