First off I would like to say that hopefully this will stop people asking what Jtag to get.
Read this if your curious of what is best for you!
I would also like to add that this is all written by me. I did not copy and paste anything
1.
Xenon
The Xenon was the first motherboard developed by microsoft back in 2005.
The Xenon motherboard is known for Overheating and other problems. Most often the problem is weak solder on your GPU. This is caused by overheating. The reason the GPU overheats is because the Heatsink is too small. (A Heatsink is like a cooler).
Pros:
1.The Xenon is the most popular Jtag as most of them were made before the NXE Dashboard, Therefore making them Jtaggable.
2.They also take type one Key Vaults so you have a better chance of Unbanning it.
3.Its also the easiest to jtag. All of it can be done above the motherboard.
Cons:
1.The Xenon will most likely Overheat within 4 months of buying.
2.It has a bigger chance of overheating if its jtagged as you would use it for 4 hours straight.
3.The Xenon also has its own Power Brick (203w) so you cannot use other Power Supplies with it.
4.The Xenon also does not have a HDMI port
2. Zephyr
The Zephyr was the first HDMI console made back in 2006
The Zephyr motherboard is Identical to the Xenon. Same size heatsinks, Same CPU & GPU etc. Close to no difference with the xenon. It was the first HDMI console. It only takes Type 2 Key Vaults making it harder to Unban.
Pros.
1. HDMI Port
2. Most are Jtaggable because they were developed 2 Years before NXE Dashboard.
Cons.
1. Same as Xenon. It will overheat just has much.
2. Only takes type 2 Key Vaults
3.Falcon
The Falcon was developed in 2007 and had the first low wattage power brick at 175w
The Falcon motherboard was the big step up in Xbox 360s. The CPU Heatsink was made larger for easier cooling. The Console had a HDMI port. The Falcon was also the First Elite Console (Black). Although they added a larger heatsink to the CPU, it was mainly the GPU that was giving problems, therefore not making a huge difference. The Falcon also had the first low wattage power brick. 175w. The Falcon only uses Type 2 Key Vaults Making it harder to unban.. Also if you want to unban it you will need to have FreeBoot 0.030. The Falcon also introduced a 12v Fan. Unlike the Xenon and Zephyr that had a 5v
Pros.
1. Larger CPU Heatsink
2. More powerful fan
3. HDMI
4. First Elite Console
5. Less Energy Consumption
Cons.
1. Developed in 2007 so less are jtaggable
2. Only Takes Type 2 Key Vaults
3. Added a larger heatsink to the wrong processor