I just installed a Pandora's Box V3 and figured i would start a review thread.
First off this is a 520 in 1 Jamma board from China. It has a whole slew of fighter games, some shooters, and some puzzle games. For some reason they also included some vertical games which don't display all that well on a horizontal game monitor.
The board has a build in amp and VGA connector as well as the Jamma audio and video. It has support for a joystick and six buttons for each player.
I installed this board in a old Sega Buck Rogers cabinet that had been gutted of everything but the monitor and power supply.
I bought the Jamma wiring harness from the same company as the Pandora's Box and I did not have to disconnect any ground wires.
There does not appear to be any Free Play mode, so wiring up a coin switch is required.
The installation was easy and the only issue I had was not a board problem (I had a scrambled screen when I first powered it up, but found a connector had come loose on the monitor chassis board).
It boots up real quick and runs a short video.
After selecting a game the game loads pretty quickly (just a few seconds).
The volume level on the games is all over the place, some being very loud and other being very quiet.
Most of the game I tried seemed to play well, but I did notice some slow down when fighting a boss in I think it was Metal Slug.
I can't seem to get games to continue with player one, but have no problems with player two (I think this might be because the player one button also gets used to display a menu to exit the game).
I will post more when after I get some more time in to playing with the various games.