Many CCTV cameras come equipped with a 2.1mm jack but they do not include the plug. This 2.1mm Plug to Terminal block makes connecting your Siamese or power cable to your camera simple! Features: Makes connecting power simple! Positive & Negative clearly marked (Positive Tip) Easy to install Removable terminal Block Specifications 2.1mm DC jack Maximum allowable current: 2 Amp Maximum allowable voltage: 30 VAC/VDC UL-Listed AWG#22 wires