The HFE-8.75-10 from ESJ Technology is a RF High Pass Filter with Frequency 8.75 to 10 GHz, Insertion Loss 2.5 dB, Rejection 80 dB, Lower Rejection 80 dB@DC to 8.37 GHz, VSWR 1.30:1. Tags: Module with Connectors. More details for HFE-8.75-10 can be seen below.