Regarding dual-bricking... interesting to see it done but why not just use a single Dell330w? Aren't two of those 240's stacked on top of each other the same volume (or more) than a dell 330w? Also an opion is to just PM @guryhwa about buying one of his modded Dell 330W bricks, he sells them at 400w and 500w versions on taobao.
In fact, unless you're running a octa-core AMD (high TDP) on a Mini-ITX AM4 mobo (why when there's Kaby-Lake and z270 Mini-ITX lol) and an AMD Fury R9 card (TDP and power spike beast), you should not be peaking anywhere near 330W anyway unless running Prime95 and furmark at the same time (which you should not attempt to do, obviously, lol)....
Josh ran some tests with my 1080mini and a stock i7-7700k running Unigen Valley to simulate real-world gaming loads (seen here at the 1:55 minute mark) only peaking at what seems to be 240 watts. And it was considerably more power efficient than the last load test Josh did with the Dell330w brick using last gen Skylake 6700k and a GTX980 (980 was tested on an open bench not inside an S4).
In fact, unless you're running a octa-core AMD (high TDP) on a Mini-ITX AM4 mobo (why when there's Kaby-Lake and z270 Mini-ITX lol) and an AMD Fury R9 card (TDP and power spike beast), you should not be peaking anywhere near 330W anyway unless running Prime95 and furmark at the same time (which you should not attempt to do, obviously, lol)....
Josh ran some tests with my 1080mini and a stock i7-7700k running Unigen Valley to simulate real-world gaming loads (seen here at the 1:55 minute mark) only peaking at what seems to be 240 watts. And it was considerably more power efficient than the last load test Josh did with the Dell330w brick using last gen Skylake 6700k and a GTX980 (980 was tested on an open bench not inside an S4).