We've had some requests for a common Anode RGB LED, you asked, we delivered! So instead of the common pin going to ground it will go to Vcc and the signal wires go low (to ground). It seems backward to normal convention but some people like to roll that way!
It's a RGB controller. For RGB LED strip lights. Two separate strips, actually. For an Arduino. Well, the Ardweeny, actually. What else can we call it but the "Double Rainbow Controller"?