The NJS8487E from Nisshinbo Micro Devices Inc. is a Low Noise Block with RF/Input Frequency 3.625 to 4.2 GHz, Output Frequency 950 MHz to 1.525 GHz, LO Frequency 5.15 GHz, Gain 59 to 66 dB, External Reference 10 MHz. More details for NJS8487E can be seen below.
