The KDAT001030M31A from KeyLink Microwave is a RF Variable Attenuator with Frequency 100 MHz to 3 GHz, Attenuation Range 31.5 dB, Insertion Loss 3 dB, Supply Voltage 5 V, Current 20 mA. Tags: Module With Connectors, Digital. More details for KDAT001030M31A can be seen below.