Apply to ACOPOWER 400wh Solar Adapter and Goal Zero Yeti 1500 from the universal MC4 solar panel connectors. The ACOPower 400wh Generator has included the solar panel MC4 adapter since July 15, 2017. Please contact us for a free adapter/cable if you bought it before the date. 
 Function: One head is MC4 female/male (common solar panel connector) and another head is DC plug in to 400wh generator (capable for ACOPower ASIN: B01MRO4Q5M ) 
 12 AWG and Length of 61 inches, need a longer one please search MC4 extension 20ft and 50ft 
 Installation: Removable MC4 connectors enable the cable to connect to PV panels and generator in seconds 
 Warranty and technical support: 2 year warranty. For a solar panel selection and adapter’s installation