This is a fantastic unit, and in many ways is a lot better than some far more expensive DMX splitters on the market. I used mine for over a month solid on a festival after I bought it with no problems whatsoever. Having both 3 and 5 pin outputs is really handy when using some budget lighting gear and saves having stacks of adaptors. It also has two mounting points for clamps or other accessories and a safety bond attachment point which is very handy, and powers from a professional powercon connector. I'd happily use these over units costing 4 times as much - and for the price difference you could just buy two. My only criticism is that the construction feels a little bit flimsier than some of the more expensive units, but it's still reasonably rugged, especially given the great price.