The TOAT-4816+ from Mini Circuits is a RF Variable Attenuator with Frequency 10 MHz to 1 GHz, Attenuation Range 4 to 28 dB, Attenuation Step 4 to 16 dB, Power 0.03 W, P1dB 15 dBm. Tags: Plug In, Programmable, Digital. More details for TOAT-4816+ can be seen below.