Hi, I have a small network with 18 servers, 13 desktops, a couple of laptops, media streaming devices, iphones etc... I also have a dozen or so outside the home users connected via a point to multipoint system 24x7. My question is this: I have been running my network without a hitch for almost a year now with run of the mill outlet strips on my racks. I have 6 dedicated 20 amp 120v outlets with their own homeruns back to my main service entrance and I have never seen them run above 11 amps on each circuit. I have a max of 4 strips per circuit and I was told that I should invest in PDU units. So whats the dif, and with my currant setup, do I really need to pay such outrageous prices for something that at the moment I am getting along just fine without? What are the pros and cons to both if there is any difference?