The 2 zone connecting blocks works as advertised. I've had one in use for over a year with no issues. I have multiple IR emitters input into each zone with the output controlling two separate cable boxes. This allows me to use only a couple of cable boxes to feed many TV's and to use cable boxes remotely to feed small wall-mounted TV's where local use of a cable box is not feasible.

I was very satisfied with the 2 zone connecting block, but I was not happy when I read that both zones and the common must be hooked up at the same time. I had only purchased one emitter because right now I only need one zone. however it did not work, |I had to plug a head phone jack into zone 2 for it to work until I purchase aonther emitter.

outstanding. I love this product

Nice item, works fine.

Great product!