The MAXI-200-400-5-SMA from Pole/Zero is a Tunable Filter with Frequency 200 to 400 MHz, Bandwidth 4 MHz, Insertion Loss 5 dB, Supply Voltage 5 to 100 V, Supply Current 10 to 500 mA. Tags: Module with Connectors, Digitally Controlled. More details for MAXI-200-400-5-SMA can be seen below.