Only the cables mounted directly on the panel are available. Connection cables for the connection to a battery or similar must be purchased separately.
None was included in the EcoFlow River Mini that I bought.

I bought the solar panel together with an Eco Flow Power Station 1200. Only the permanently installed connection cables were included with the panel. The Power Station includes the connection cables for the panel, a cold appliance plug (230V mains connection) and a 12V charging cable (e.g. car).

No other cables are included with this product. Output cable at the module approx. 100cm/connection: MC4.