Help identifying LED strip and its connectors
Looks like the kind of strip that can only glow in one colour for all LEDs. In other words, not addressable pixels.
There are RGB LEDs and it looks like one resistor for each color of LED per triplet of LEDs. So each triplet consists of 3 series LEDs of each of the 3 colors and one resistor.
To get various colors (other than the 7 binary combinations) you need a controller that PWMs the 3 controller outputs to ground with a power MOSFET.