I got a small 2u Rack with 4 wireless 1/2 rack wireless. (Senn. EW100) There is not really any room to install a power strip for the Wall warts. I stumbled upon the below. a 12v DC adapter with 4 tails. https://www.amazon.com/gp/product/B002WM8ZV0/?tag=controlbooth-20 This DC splitter device seems designed for Video cameras but the 2.1mm connectors are compatible an the voltage and amp capacity. So I picked it up, and unsurprisingly it appears to be junk, some of the connectors don't work, or are a inconsistent fit. The end result being that between both of them only 1 connector worked, on 1, and 2 on the other, and both in consistently. Is anyone aware of a place to look for something built better (UL listed, which the above in hind-sight appear not to be) that solves my 4 unit power problem. They draw 12v DC, 400mA each. I have an Old GEN 1 ASA1/NT RF combiner that I'm using for antenna distro, but it's in another rack and has little DC tails (that won't reach) as supposed to supplying power through the RF connector. Thoughts or place to look for a solution!? Much appreciated.