The earliest versions of the VARG MX 1.0 equipped with a Gen 1 Powertrain (recognizable with its black plastic inverter lid) feature a separate charging port. The charging port cap is a quarter turn locking cap. This part number includes the cap and the steel cable. This cap is only compatible with the VARG MX 1.0 Gen 1, not with the VARG MX 1.0 Gen 2, VARG MX 1.2, VARG EX and VARG SM for which the smaller cap SMX1-PT-IN-CAP-OP is required.