This mini inline LED amplifier allows you to extend a strip of RGB strip lighting with the same color and brightness while using an additional power source for the new strip. Using multiple amplifiers and power adapters you can extend the strip infinitely. This device is actually a complete RGB controller that reads the voltage from another strip rather than accepting user input. Connectors: 5.5x2.1mm Female Barrel, 2x 4-pin Voltage: 12V, Max Load: 3x4A (3x36W)