The Keysight / Agilent / HP E1401B is Keysight Technologies most compact, medium-power, high-performance C-size, 13-slot VXI mainframe. Ample dynamic and peak currents are available for most power-hungry applications.

The E1401B is well suited for applications that require high-density instrumentation. The E1401B complies with the VXI plug&plays specification, and an optional rack mount kit is available for attaching VXI plug&play-defined interconnect fixtures. This mainframe also complies with the VXI Specification by providing injector surface rails used by The Keysight / Agilent / HP QUIC easy module insertion and extraction system. Keysight industry-leading Pressurized Air Channel cooling technology is integrated into this C-size mainframe.

This mainframe provides for easy airflow and power supply serviceability via the rear panel. The backplane features solid state automatic daisy-chain jumper connections for VMEbus grant and interrupt acknowledge lines, eliminating the need for hand selection of switch settings. It is also compatible with The Keysight / Agilent / HP backplane connector shield kit (p/n E1400-80920).