Had to upgrade a few controllers as we were maxing out at over 1k pixels per port groups and needed a few more differential ports for remote boards as well. So I now have four f16v3 boards that are in good shape for sale. 3 of them also have the 4 port differential expansion boards and one has the 16 port pixel expansion board. Looking for $125 each + shipping for the f16v3 and $20 for the expansion boards each. Open to offers with the more you buy the better deal I can offer. Thanks