The QIMP1350 from Qualwave is a Impedance Matching Pad with Frequency DC to 1.3 GHz, Input Power 50 W, Operating Temperature -10 to 50 Degree C, Storage Temperature -40 to 70 Degree C(Non-Operating), VSWR 1.20:1. Tags: Connectorized, 50 to 75 Ohms. More details for QIMP1350 can be seen below.