Handy relay breakout base board for 4 pole ac-dc relay. 14 pin relay socket (30 x 21mm ext. dims) with spring wire retaining clip breaking out to 15 (+5 spare) screw terminals. diode can be removed for A.C use. Socket will accept round or flat relay pins (relay not included) Great little board for alarm projects, cnc machine control such as coolant pump, emergency stop, laser air assist pumps. Status: NOS (New Old Stock) individually bagged. Bargain price.