Here are some key features and specifications of the 6ES7407-0KR02-0AA0 module:

Type: Digital I/O module

Number of digital inputs: 8

Input voltage: 24 V DC

Input current: 7 mA

Input signal delay (ON delay): <10 μs

Number of digital outputs: 8

Output voltage: 24 V DC

Output current: 0.5 A per channel

Output signal delay (OFF delay): <2 μs

This module can be used in conjunction with other modules and accessories in the SIMATIC S7-400 series to build a complete automation solution. It is typically programmed using Siemens' STEP 7 software and integrated into the overall control system.