1. All the no-solder chips for xbox are the normal solder chips, with an extra adapter you can buy.
2. Just about every chip that you can find can be turned off, but you have to solder the switch on it yourself.
3. Yes
4. Most common chips are the
Matrix/Xodus and the
X-ecuter 2 lite/pro (but you also need to buy the pogo-pin addon)
5. 120gb, for the most part