don't buy cheap card that hash low 1060 is not good now, buy expensive oen that have higher density and hashrate because the profit is very high roi is fast
Get 6x 1080 Ti for best density and no need for extra components. That's what I ordered for six rigs.
how do you power that with dual psu or single 1500watt? is that enough?
1500W would probably be fine if you under volt them but I don't really care about power so I'll be overclocking them and use a separate 2400W server PSU (2400W is way too much but they're not that expensive anyway).