I'm well aware of these products. No need to link them. My point is why so manufacturers feel this is the better option? A larger product with a DC ps built in internally would be much better and more preferred than big wall warts and third party products required to cleanly install them. I recognize the fact that many products are not designed with CIs or rack mounted in mind, but at the same time many are. Total control gear drives me crazy. They have long cords leading up to a big power brick and then another long power cord from the brick. This IS a product designed for CIs. So why design it like this? For the few slammer that throw the gear on a shelf rather then a rack? I simply don't get it.