What power cord and outlet type from 220/240 power supply?

[Ameador1]

I'm getting ready to setup an Antminer S9 (first bitminer ) I'm going to put in a 30amp 240v breaker anticipating possibly adding another Antminer S9 or better later. But, all the power supplies I'm finding (and the Bitminer APW3 I'm getting) don't come with a power cord. So, what power cord should I get? This is in the USA. I also need to get the outlets to plug them into. So what type outlet would it be? Links to Amazon items or other sources would be great! Thanks in advance!

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[QuintLeo]

For a 30 amp circuit, a L6-30 is the most common used outlet, but feeding a Power Distribution Unit to break it down to 2 or 3 smaller circuits.

 You COULD have 4 or so NEMA 6-15 outlets put in on that circuit instead - just don't push 15 amps through ALL of them at one time.

[Ameador1]

I was thinking to use the 30amp 240v to run 3 plugs capable of running 3 Antminer S9 units (1 per plug). I want to start with 1 and add more later if it stays profitable and I can afford reinvest in more of them.

[Ameador1]

It seems a lot of people are using 220/240v, what is typically being done as far as cables from the power supplies to outlets? Are they just connecting regular outlets to two hots and using heavy duty universal power cords to the outlets, or are they using the nema 6-15 plugs and tracking down power cords to match? I have found some, but they are not heavy duty (14 awg VS 12 awg)