Quantic PMI Model MA-6G11G-20DB-SFF is a 6 to 11 GHz Mechanical Variable Attenuator that offers an attenuation range of 0 to 20 dB. Attenuation adustments are made using a screwdriver and shaft lock. Supplied in a 1.75" x 1.0" x 0.5" housing with SMA female connectors.