Assuming that most people that buy the Blue Elf cart will be private home owners trying to make a large MAME style cab with available materials, it's important to keep in mind that:
1. the BLUE ELF 309-1 does NOT work on a RGB to TV converter. I was pretty dissapointed finding this out.
2. System 16 games like Altered Beast, Golden Axe, Shinobi, etc are all broken and can not be played.
3. Many newer titles lag, not so bad that you can't play them, but definitely slow enough that you'll be like "uhm, this sucks."
4. Not sure what seems to be wrong with my BLUE ELF cart, but about 1/4 of the games will NOT even display at all. WTF??? I'm using a rebuilt K7000 yet 25% of the games when selected will not sync on screen? The screen gets all fucked up? To make it worse, it's a lot of the good titles like all the Metal Slugs. I'd assume it's got something to do with the sync wire to the monitor, but then why do all the other games work fine? It's bullshit.
Do yourself a favor and just pass on the BLUE ELF. I spent alot of time to make a multi cab for fighting games, Shmups, and brawlers, but am so dissapointed with the shitty board that I'm going to sell it very soon. I will be making a youtube video very soon showing the good and the bad of the board so everyone can see what I'm talking about.