The upper heat sink is equipped with a powerful fan, which draws out hot air from the case and blows through the plate fins of this heat sink. The enlarged 92mm fan (Shuttle AD0912UX-A7BGL) singles out this system from competing solutions (and old Shuttle XPCs), because the noise/performance ratio of this cooler is outstanding. ADDA Products are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for ADDA Products.

AD0912UX-A7BGL-LF ADDA DC Fans DC Axial Fan, 92x25mm, 12VDC, Ultra-High Speed, Hypro Bearing, PWM datasheet, inventory & pricing.