I have a mp40 2nd gen I'm looking to sell. I bought it used so I have no idea the manufacture date. I bought it earlier this year and have since replaced the wet side because I couldn't seem to get rid of the rattle in it with the old one. I also have a belkin power supply that was setup with a mp plug on it. That will not be with the mp for this price. But is for sale. I want 200 obo for the mp and 50 for the belkin battery back up. Works great is still running in my tank. Just is to big and I don't feel it is good for it to be running at 10-15%