Why this threshold matters in Korea

At 0.05 PH/s per unit (50 TH/s), power draw and exhaust volume cross a line where residential wiring and ad-hoc cooling fail. Moderate-scale operators—those running dedicated rows rather than single benches—need hardware that justifies breaker upgrades, lease negotiations, and intake design.

This guide summarises categories we assess most often. It is reference material, not a purchase catalogue.

ASIC rigs at moderate scale

ClassTypical nameplateKorean summer note
Entry industrial ASIC0.05–0.07 PH/sOften requires dedicated 20A circuits per unit
Mid-tier ASIC0.08–0.12 PH/sIntake above 30°C may derate 8–15%
High-density row0.15+ PH/s per unitFloor loading and exhaust stacking become primary constraints

Assessment focus: Measured terahash per kilowatt-hour at your intake, fan wear audibility at property line, and rack depth for cable service loops.

GPU high-density frames

Some operators stack GPU frames that aggregate above 0.05 PH/s per bay. These demand different cooling math—front-to-back airflow is rarely sufficient without aisle discipline.

We log:

  • Per-bay aggregate hash at stable core temperatures
  • Auxiliary fan failure points
  • Maintenance clearance for GPU swap without shutting the full row

Infrastructure pairing

Hardware above 0.05 PH/s fails silently when paired with:

  • Undersized breakers that trip on startup inrush
  • Recirculated hot exhaust into intake louvers
  • Ceiling heights below manufacturer clearance specs

Our Cooling & Power Layout Review addresses these pairings before order placement.

How we use this guide in visits

Assessors carry a checklist derived from this reference—adjusted per site. It does not replace measured logging on your floor.

Next steps