We offer many hard-to-find Delta AFB, EFB, FFB, PFB and TFB series fans. They are incredible fans that move air like no other. Whether it is EFB's thicker blade design resulting in greater air pressure, or FFB's directional fins that force air to flow exactly where it's needed, Delta fans are proven, high-quality parts that are built to last for both the overclocker and system integrator.