Product review (5 stars): Also works with LG LSC27921ST
With a little bit of tweaking the device worked with my LG LSC27921ST!  This model is 513605010 and LG is just one digit lower 513605009. The only difference seems to be the two connectors are a bit thinner and the LG cables have wider noses. So just connect them at an angle or squeeze the nose to make them thinner and you're good. I've used it for.... a day.. and so far so good. Good luck! I'm just excited it's working so I'm posting it asap :)