Just an FYI.
With the USB connector on my left I measured temps from left to right with my infrared thermometer.
After plugging into USB3 and sitting idle for 5 minutes
Temps: 40C, 42C, 40C
After tuning to 162.4MHz in Gqrx for 10 minutes
Sample Rate: 1Msps
Temps: 43C, 47.5C, 43C
BTW have not listened to wx radio in a long time but the voice is much improved. He even says "sunny" right.