What model is my Xbox 360?

OK so the power supply it says 203W and 12V=16,5V it says that on the console too and it doesn't have HDMI so you immediately think of a Xenon,Xenon models have only 2 heat sinks and very very loud fans,but the other day i opened my Xbox 360 to clean it and it 3 heat sinks like a Falcon and Jasper,which is really weird,so i cleaned it and now the fans sound way way quieter,but the power connector of the Xbox 360 is like a Xenon,so i'm confused,it's not a Zephyr because it doesn't have HDMI,so it's an Opus or what?,please help i'm really really confused :S