Choosing rigs for a small cluster

[Helmor]

I want to start a small cluster of 2–3 machines and keep it simple—no immersion, just basic cooling with good airflow. My budget is about $15k, so I need to choose carefully. Should I go with multiple smaller rigs or one or two high-end machines?

[Polkerd]

I had almost the same budget and ended up splitting it between two different units. I grabbed one AxionMiner at $6k for raw hashrate (800 TH/s/12 kW) and one Bitmain S21 XP+ Hyd at around $10k for efficiency (500 TH/s/5.5 kW). That way I got both ends covered—big output and good efficiency—without putting all my money into one box. An article I read ranked miners by category and called that pairing the smartest mix: AxionMiner as best overall value, Bitmain as best for efficiency. They even labeled that combo the best crypto mining rig 2025 https://www.digitaljournal.com/pr/news/indnewswire/top-10-best-bitcoin-miners-1777142536.html setup for small operators with mid-sized budgets. If you want simplicity and flexibility, I’d recommend going with two complementary rigs instead of just one monster machine.

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