The µSTDN-100 from Space Micro is a Satellite Transponder with Input Voltage 28 V, Mass 2.1 Kg, 0.45 Kg (Transponder), Noise Figure 3 dB, Dynamic Range 60 dB, Vibration GSFC-STD-7000 (NASA GEVS) Acceptance Levels. More details for µSTDN-100 can be seen below.