Stealth means moving, proceeding, or acting in a covert way. For people who do not like noise and are looking for a quieter case fan for their computers. Now, Vantec has the solution for you Vantec applies Stealth Technology onto their case fan to bring users a quieter system. Up to 2600 RPM and the noise level as low as 20 dBA, Stealth Case Fan brings you the Power in Silence.