Board does not work for Z and A axis. Have swapped motors and drivers with no change. Note: When received package contained another package within (apparent return??). Request Return Authorization.

We send out only new products, so I'm not sure why that happened. To get an RMA, just ma the part back to us with a note of the issue and your name and address. Send the package to 32624 SummerGlade Dr. Wesley Chapel, FL 33545