The cables are 10/3 AWG for 30 A. On another topic page, someone posted a link to buy the cable assembly from Bluetti for $99. If I had to build this for someone else, I would charge more than $99 because the two SP29 aviation connectors cost me $32 directly from Weipu, the only supplier. By chance, the Bluetti offer has the same blue colored SP29 connectors that I bought.