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The Kia EV6 comes with NO charging adapter/cable, also known as EVSE. Customer is free to buy what works best for them.
Here are few options:
Install a wall mounted EVSE that is directly connected to a dedicated circuit for highest charge rate.
Buy any 3rd party mobile EVSEs that can plug into a NEMA 10-30, 14-30, 14-50 socket.
If you need to share a circuit with a dryer in the garage, then buy a Splitvolt SPS C1-011 or SPS C2-022 with a mobile EVSE that’s 24 amps.