ITEM NAME:20PCS 250V Powercon 3 Pin Speaker Chassis Adapter Powercon Connector NAC3FC M7K3 20PCS 250V Powercon 3 Pin Speaker Chassis Adapter Powercon Connector NAC3FC M7K3 20 A / 250 V AC device coupler with lock. Three linear contacts, no load and precast. The power input (blue) and the power output (white) have different lock keys to prevent short circuits. Quick and practical swivel locking system. Ergonomic design. Color: blue Material: plastic + copper core Size: 72*26mm Package Contents: 20 * PowerCon Connector