ET4 Ethernet 2023A Diagnostic Adapter 478-0235 538-5051 Communication Adapter 3 Tool Software 2023A Heavy Equipment Diagnostic Test Tool 457-6114 Software:programmable versions in the package: 2021B or 2023A in the USB Disk and 2019C in the CD. Plug the ethernet cable into the port to flash the program. It is 10 times faster than flashing by an adapter with network. It can be flashed without the adapter. Main Board: Based entirely on the original factory one-to-one manufacturing. Whole plate molding, not welded. Hardware: Communication Adapter 3 Diagnostic Cable:6+9+14 pins Connection Mode: USB connection Operating System: WIN7 64-bit and WIN10 can work, it is recommended that WIN10 professional edition 64-bit system. Support Multi-Languages:English, Chinese, Danish, French, German, Italian, Japanese, Portuguese, Russian, Spanish Communication Adapter 3 Function: 1.ECM Summary screen lists every control module on equipment 2.Being tested and gives information on these modules. 3.Fast hookup and real time display of systems status. Displays ,readings such as rpm, boost, pressures, temperatures, etc. for Easy troubleshooting. 4.Identifies faulty sensors, harness connectors, and system parameters which are out of specification. Allows customers 5.To help dealer identify problems without visiting machine. 6.Identifies intermittent sensors and wiring problems during Machine operation and keeps a record of each one. Showswhen problem occurred and how often it happened. 7.Added information to allow customer to assist dealer in diagnosing and repairing problems. (Troubeshooting Help is not built in with in the program, you will still need go back to books in order to follow a repair description and steps in each Fault Code display within the program).English and metric units of measure integrated help file to easy learn the "How To" around the software. Function:It can diagnose all machines with Caterpillar Diesel engine, including excavators, trucks, ships, etc.