If you run them in LTC-only mode, easily, and that's what I'm planning to do (plus removing the fans). If you run them in BTC-mode or dual-mode, you could do it if you have a beefy enough power supply (particularly enough current on the 12V rail). I would only run one miner per 12V wire. You would want to use the GPU/CPU plugs; they have 4 12V wires each.