The 80X01 (one-meter) and 80X02 (two-meter) electrical sampling module extender cables are for use with supported electrical sampling modules. Use the extender to move the sampling module from its instrument compartment, closer to the device under test, so that you can use shorter signal cables. Using the extender avoids input-signal degradation that can occur when using long-length signal cables between the sampling module and the device under test.