The product number N1294A hides various accessories for the high-precision power supplies of the B2900A series, which are characterized by very low noise and adjustable currents from 10 fA (femto-amperes) to the ampere range and a voltage range from 100 nV to ± 210V. 
 Depending on the application and measurement task, you can choose from the following list of options: 
 Option: Description: 
 N1294A-001 / -002 Adapter banana plug acc. To Triax for applications with very low currents, <1nA 
 N1294A-011 / -012 Connection cable for the Keysight test holder (formerly Agilents electronic measurement technology) 16442 
 N1294A-021 / -022 filter for very low noise especially for B2961A and B2962A 
 N1294A-031 Is a GPIO-BNC trigger adapter to be able to trigger or synchronize other measuring devices