The 40-876 is a 50 Ohm 4 to 1 RF MUX available with 1, 2 or 4 banks in a single PXI slot. Additionally, extra switching allows the common connection to be terminated into 50 Ohm, maintaining signal integrity. All versions exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of the 40-876 has been minimized by careful attention to the mechanical and electrical design.