The new Calibre IDF dual fans, copper die-casting thermal base, three heatpipes, and 0.2mm thin cooling fins. Unlike the previous Dual Fly cooler which had a manual angle adjustment, the new IDF has an installed motor that adjusts the angle according to the preset temperature on Sparkle's GBOX hardware device, which shows the GPU temperature, voltage as well as the fan speed. The best part about the integrated motor is that it doesn't need additional power is it uses the 4-pin power connector on the PCB of the graphics card.
Source: FUD Zilla