The CoolTouch-E is just one of two fan controllers released by Aerocool. The other is the CoolTouch-R, which I will be dealing with now.
I'd say that the CoolTouch-R is the CoolTouch-E with something extra, but that's not quite true.
Sure, it has the same four fan channels, power button and LCD background color control button, as well as a USB 3.0 port and card reader that the CoolTouch-E lacks.
But those last two come at the expense of the screen, which had to be a bit smaller, at 85 x 25 mm instead of 100 x 25 mm.
The card reader supports SD/SDHC/SDXC/MMC/RS MMC and miniSD cards.
Aerocool sells the CoolTouch-R for €32.50 / $43.81. As before, the background color of the LCD can be red, green, yellow, blue, light blue, purple or white.