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tcicatelli // Thank you for the useful comment tcicatelli. One more question, if the noise level is 38dba, is <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;it more louder then 28dba? 
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tcicatelli // Thank you for the useful comment tcicatelli. One more question, if the noise level is 38dba, is
                 it more louder then 28dba?

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Check out this page: <a href="http://home.netvista.net/hpb/dblevels.html" rel="ugc">http://home.netvista.net/hpb/dblevels.html</a><br />
<br />
Also check out fans at <a href="http://www.directron.com/quietfans.html" rel="ugc">http://www.directron.com/quietfans.html</a><br />
<br />
I prefer Panaflo and Thermaltake, but that's just my opinion. &nbsp;As long as the quality is good, look for a high cfm and a low db.
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Check out this page: http://home.netvista.net/hpb/dblevels.html [http://home.netvista.net/hpb/dblevels.html]

Also check out fans at http://www.directron.com/quietfans.html [http://www.directron.com/quietfans.html]

I prefer Panaflo and Thermaltake, but that's just my opinion.  As long as the quality is good, look for a high cfm and a low db.

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I bought a cooling fan for my computer and when you see at the back of the case<br />
<br />
there is a specification about the cooling fan.<br />
--------------------------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />-<br />
Rated speed :: 2,500 R.P.M &nbsp; &lt;--what's this mean? is it good if the number is high or low?<br />
Noise level :: 28. dba &nbsp;&lt;-- Is it good if the number is high or low?<br />
Air flow :: 31.73CFM at 2,500 R.P.M &nbsp;&lt;-- don't know what this mean.<br />
Rated Current :: 0.15A &nbsp;&lt;--- don't know what this mean.<br />
--------------------------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />----------<wbr />-<br />
<br />
Please explain those 4things above. Thank you.
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I bought a cooling fan for my computer and when you see at the back of the case

there is a specification about the cooling fan.
-----------------------------------------------------------------------------------------------------------
Rated speed :: 2,500 R.P.M   <--what's this mean? is it good if the number is high or low?
Noise level :: 28. dba  <-- Is it good if the number is high or low?
Air flow :: 31.73CFM at 2,500 R.P.M  <-- don't know what this mean.
Rated Current :: 0.15A  <--- don't know what this mean.
-----------------------------------------------------------------------------------------------------------

Please explain those 4things above. Thank you.

What's all this mean?(Cooling fan specification)

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.