These are in good condition. 

ALL Xbox 360 Fans Make some Noise. 

This is the 360 PHAT 4-Pin Nidec Duo Fan X807581-001 Type #2. 

These are for the PHAT Original Xbox 360 ONLY. 

Each is usually Dirty and Dusty.

I Windex Clean each blade before shipping.

 I have a few of these.