It means you don't have as much to cool.
Getting rid of 30 watts of heat is trivial compared to say, 300 (I don't quite know how to read that ratio since a 2.5kW SSD seems a little high to me).
Getting rid of 30 watts of heat is trivial compared to say, 300 (I don't quite know how to read that ratio since a 2.5kW SSD seems a little high to me).