The NJS8496UN from Nisshinbo Micro Devices is a Low Noise Block with Input RF Frequency 3.4 to 4.2 GHz, Output RF Frequency 950 MHz to 1.7 GHz, LO Frequency 5.15 GHz, LO Stability ±1 ppm, ±5 ppm, Gain 59 to 67 dB. More details for NJS8496UN can be seen below.