The Agilent E1301B B-size VXI mainframe features improved dual fan cooling for support of the most demanding B-size modules, such as the E1312A. Two of its nine slots are located internally and are dedicated to housing the 2-slot E1326B Multimeter.
The E1301B Mainframe features a built-in high-performance command module (functionally identical to the E1306A Command Module) with built-in GPIB interface.
The E1301B Mainframe is identical to the E1300B in function, but features a front panel and keyboard for manual control and troubleshooting without the use of GPIB. This makes it an ideal mainframe for remote applications.