Quantic PMI Model MA-1D5G2G-15DB-SFF is a 1.5 to 2 GHz Mechanical Variable Attenuator that offers an attenuation range of 0 to 15 dB. attenuation adjustments are made using a screwdriver and shaft lock. The unit is supplied in a 2.0" x 1.25" x 0.5" housing with SMA female connectors.