I'm currently using a Enttec USB PRO and outputting to a LT-DMX-2801 decoder to control some WS2801 addressable strips . I've also got a strand of WS2812b connected to a tiny PCB which is working well off my Enttec. I prefer the WS2801 leds though, as the WS2812b are 60led/m so by length they eat up...