Difference between Neo Geo AEC and Neo Geo O?

[ROBO2011]

Does anybody know the Difference?

 

[ggallegos1]

Wut?

 

[in99flames]

If I am not mistaken, AEC is the USA version and the Neo - O is the Japanese version.

 

[HeavyMachineGoob]

He means the sticker on the bottom of the console. It's either NEO-AEC or NEO-O. Yeah it's either USA/JPN or sometimes 5 volt/9 volt.

 

[ROBO2011]

Thanks guys! My system is neo o and the language is english.No Unibios. There is a warrenty seal sticker from a store in Signapore on it. It doesn't have the Korean logo...
My power supply is an old C64 power supply.