what board is this

Hi All,

Does anyone know what board is this (attached photo). I want to update the firmware and not sure what board I have to select in Arduino. The processor on it is ATmega64A.

The intent is to use it with Marlin and Pronterface. Current info I have got is it works on replicator 37. the manufacturer didnt mention what firmware they have use (This is from China, so not much information or support is available)

Thanks in advance.