DEFA MiniPlug connection cable 2,5mm2 is delivered only as a separate product. It is available in several lengths. See the product sheet.
The DEFA Connection cables MiniPlug end is also called DEFA EcoPlug.
Only use original DEFA MiniPlug connection cables with the DEFA MiniPlug inlet cable. Connect the DEFA MiniPlug connection cable only to an earthed power socket. Follow the installation guide.