The ZXHF-K912+ from Mini Circuits is a RF High Pass Filter with Frequency 9.1 to 30 GHz, Insertion Loss 2 to 2.6 dB, Power 1.26 W, Rejection 6.9 to 14.3 dB, Lower Rejection 6.9 to 14.3 dB @DC to 7100 MHz. Tags: Module with Connectors, Reflectionless Filter. More details for ZXHF-K912+ can be seen below.