We’ve recently had some calls from customers who when ordering the P0302-ND USB Blaster Cable from Terasic Inc., did not receive the board, just two cables. Our Product Specialist has confirmed that the board is built into the USB Blaster Cable. It is not a separate piece.
For more information such as installation instructions please review the datasheets.
Terasic USB Blaster revB Manual - Terasic Wiki