http://www.fanlesstech.com/2018/11/fanless-coffee-lake-nuc-better-thermals.html
 
Fanless mini-PC major cirrus7 rolled out the Nimnini 2.5, cube-shaped fanless NUC powered by Intel 8th generation "Coffee Lake" ("Kaby Lake-R") SoC, specifically the Core i7-8559U. The company claims the case with its included heatsink runs the i7-8559U a whole 12 °C cooler than Intel's stock fan-heatsink based case. The base-model of the cirrus7 Nimbini 2.5 includes a Core i3-8109U dual-core SoC, and is priced at 499€. You can configure it with a Core i5-8259U quad-core for an extra 139€, and the i7-8559U for 299€ over the base price. You add your own memory and storage. I think the price is fair and reasonable for a fanless system.