The Row and Column Cable Kit for the SCB-264x will only come with one 16 pin ribbon cable. You can either purchase a second cable kit and use its 16 pin ribbon cable for the second SCB-264x, or you can purchase an Matrix Expansion Cable for TB-264xB Terminal Blocks. Though it is called a Column Expansion Cable, this ribbon cable has the necessary 16 pin connector to cable the rows. Be aware it will be 9 inches in length, shorter than the cables in the Row and Column Cable Kit for the SCB-264x (1.5 m cable lengths).
MAC Panel’s SCOUT Product Family is a configurable Mass Interconnect system that provides a PCB or short wire interconnection for your PXI based test system. The MAC Panel's TB-2645 connectivity solution is DAK Assembly number 561149; you can contact the company for more information. MAC Panel purchases the NI front-mounting terminal block and integrates it into the DAK assembly. If you have already purchased the NI terminal block TB-264x, MAC Panel will either a) reduce the price accordingly and let you install the terminal block, or b) let you supply it to MAC Panel to install.