The NJS8498VF from Nisshinbo Micro Devices is a Low Noise Block with Input RF Frequency 4.5 to 4.8 GHz, Output RF Frequency 960 MHz to 1.26 GHz, LO Frequency 5.76 GHz, LO Stability ±0.3 ppm, ±1.5 ppm, Gain 59 to 67 dB. More details for NJS8498VF can be seen below.