Xian, I happen to have 18 myself. What is your solution for powering them? I didn't plan ahead for my shipment all that well, so I currently have 12 attached to a standalone 1000W ATX PSU; the other 6 are leeching off of a different PC's spare PCI-E cables (in a different room altogether). I'd like to consolidate them if I can.
Using a Corsair TX 850 to power 10 of them, and using the PCIE cables off a RaidMax 1000W that is powering the host CPU to drive the other 8 K16's.
Just out of curiosity, what USB hubs are you guys using? My Ankers for some strange reason do not work anymore, on either windows or linux. Must be some sort of weird usb 3.0 bug in those hubs, or some weird cgminer issue.
My klondikes do not like USB 3.0 at all. I can only run mine off the built in USB ports on the computers (either the windows7 or the linux box). They just are not recognized off the Anker 3.0 hubs. I keep thinking its either a bug in CGminer 3.6ish and above, because they do not work with the block erupters anymore either, but used to work fine with CGminer 3.5.0...
I have an ancient Dlink hub that works fine (weird), but it only has 4 slots. Totally friggin strange !