You can stack at least two 120V OutBack Power Inverters when 1) they are wired as such AND 2) when you program the OutBack Power MATE3s to indicate a 240V system. A MATE3s is required to accomplish th
MATE2M has been discontinued. MATE2M had some of the menus routed specifically for Mobile/Marine, however, MATE2 has all of the information available that MATE2M did.