The Allen-Bradley 140354 renewal main control board card, part of the 1395 series of digital DC drives, features a 4.01 firmware revision and supports communication for Series B drives with horsepower ratings from 1 to 30 HP or 2 to 60 HP, operating at 230 and 460 Volts DC. Key for integrating regenerative and non-regenerative systems, this singular main control board is situated at the front of the drive and includes ports A and B for connectivity. Designed for optimal operational conditions, it functions within a temperature range of 0 to 50 degrees Celsius and 5 to 95% non-condensing humidity, emphasizing careful handling due to its sensitivity to electrostatic discharge and moisture.