After what I've been reading, I'm inclined to agree with this.
I'm considering returning the 4 I purchased and waiting for the Sapphire Nitro as it has an 8-pin connector.
Bad news
It is still 6 pin. I was excited but we have to wait for AMD to fix the drivers or for Saphire to fix the card completely
http://cdn.videocardz.com/1/2016/06/7a79ec5bc2629bc83777c6e1fc6a5c17_1465221326_7469-900x253.jpg
In the next few days, we will see the reduction of network hash rate as the new 480 RX will burn may motherboards and PSU.
Got all my rig with powered usb risers. Works like a charm. No overheating wires/ burned connecters or other stuff. But the stock coolers sucks horrible balls. I guess i will move my rig to the garage and turn the fans to 100%. 60% coolers with 81 temp in open rig is not nice at all. 24.8 mh/s stock hash rate by the way.
Do you use the 6 USB risers coming out of 2 PSU cables, or 3 USB per power cable? That is almost the limit of each cable.