I am confused of whom to thanks for this excellent 
AD0912US-A70GL TC, DC Fan.  

92X92X25 mm 
Sleeve / noiseless 
57.0 CMF 
Operating voltage (actual) 3V ~ 12V 
3300 RPM 
================================================================
Dumpster find this was HP-Q220PC3P ( PDP-121P) computer PSU 220W, branded as COMPAQ. 
The PSU is dead due poor electronics design (19 years old),  these was voltage leakage to metal case, due input MOV, because it was less than half centimeter away from it.
Never seen before such PSU input damage. 
PCB surface around two MOV, this is smoked and black, and there is black smoke traces over the metal case too.  
(Both MOV parts externally intact.) 
killed due thunder storm?  
================================================================
Even so this ADDA AD0912US-A70GL TC, its an excellent find  
 I did powered it with 12V and DC current this was at 320mA after RPM stabilization.
I searched for the datasheet, this is a sleeve bearing DC fan, I did take it apart for cleaning and lubrication. 
ADDA factory lubrication (grease) this was still there by a 5%.
As soon fresh grease installed, DC Fan current fall down to 300 mA after RPM stabilization, and few minutes later it got further down to 280 mA.  
 Today I feel happy, because this is a quality made DC fan, which it did survived with out damage so far, and now its good as new, so to serve again in to another project.
A silent powerful monster  
   Test results: 
4 V = 90 mA
5 V = 110 mA 
8 V = 180 mA
9 V = 210 mA 
10 V = 230 mA
11 V = 260 mA
12 V = 280 mA
13.8 V = 330 mA