The SB1660 sold ER able PC breadboard enables you to transfer your circuit and wires from a plugin breadboard without changing your layout. The SB1660 has the same pattern and spacing as two standard 830 connection point BB830 solderless plug-in breadboards side-by-side. It has a standard 5-hole strip for each IC pin, just like solderless breadboards. It provides the reliable long-term connections of soldered joints.