The ZXHF-K912+ from Mini Circuits is a RF High Pass Filter with Frequency 9.1 to 30 GHz, Insertion Loss 2.0 to 2.6 dB, Power 0.25 to 1.26 W, Rejection 12 to 14.3 dB, Lower Rejection 12 to 14.3 dB @ DC to 7100. Tags: Connectorized. More details for ZXHF-K912+ can be seen below.