There should be 125 °C more than 125 °C degrees Celsius in the RF circuit board.The Evaluation board type is Amplifier.A RF Board from the well-known -- series of products is being offered here.
MICRF300-315 EV Features
125 °C degrees Celsius Amplifier Type
MICRF300-315 EV Applications
There are a lot of Microchip Technology MICRF300-315 EV RF Boards applications.