Silent 4 x 2.5GbE pfSense box

"A consequence of the more ornate heatsink is that it certainly feels cooler to the touch than the Hunsn unit, likely due to more surface area to dissipate heat. The other consequence is that you will not want to place it on its side since the sides are curved edges on this unit. Frankly, this is a heatsink designed for more power-hungry processors. Our system did use a bit more power at 5.5-6W idle and closer to 11-12W under load." 

Source: ServeTheHome