Actually you were correct. You can buyr "red sexlink pullets" (red chicks) or "red sexlink cockerels" (white chicks) or straight run red sexlinks (red females and white males mixed together.)
But if you do buy sexed chicks, the sexlink chicks are more likely to be correctly sexed, as compared with breeds that have to be vent-sexed (probably because it's easier to sort chicks by color than to vent sex them, so there are not as many mis-sexed.)
This is an old thread. Before you posted, the most recent post was from 2015, and none of the previous posters seem to be active anymore. For future, you might want to check dates to be sure you are posting in a thread recent enough to be active (it's a mistake I make sometimes myself, forgetting to check dates before posting!)
