8W/m.K is pitiful as they are much 'thicker' than thermal paste; good pastes should have higher thermal conductivity to boot as well. If a solid pad is needed in place of thermal paste - carbon pads, e.g. "Carbonaut" is a lot better solution. Carbon sheets have higher base thermal conductivity than copper, of course not so high when polymerized.

I don't know anything about it, however the power consumption is non trivial: 5.25 W (net 4.25 W) Maximum noise inside device at 50 cm 21 dBA. Maximum power consumption 1 W. A laptop fan is around 2.25W or so for the whole operation and it can definitely dissipate more than 10W produced. A laptop will need 5 or so, more if it has any discreet GPU.

Funny note of the site - everything is metric (even pressure is Pascals, distances for the noise is cm - 50), but the airflow is in cfm (cubic feet per minute)