What We Measure
Three pillars of every hardware assessment
Hashrate vs. Wear
We track how hashboards degrade under sustained load, comparing factory-rated TH/s against real output after months of operation in Korean climate conditions.
Power Economics
Every evaluation includes joules-per-terahash calculations at local electricity rates, so you see the true operating cost beside the purchase price.
Repair & Parts Availability
We document fan failure rates, PSU replacement costs, and whether spare hashboards remain available from the manufacturer or grey-market suppliers.
Evaluation Services
Hands-on assessments for individual buyers and small operations
Fleet Lifecycle Assessment
A forward-looking analysis of when to repair, replace, or retire each model in your operation.
From ₩1,950,000
Miner Longevity Evaluation
Our flagship evaluation measures how a miner holds up over time — hashboard wear, fan life, PSU reliability, and spare parts availability.
From ₩850,000
Power Efficiency Audit
We calculate actual power draw per TH/s under your operating conditions, revealing which units earn their rack space.
From ₩620,000
From the Field
What operators tell us after working with our reports
We were about to buy twenty used S19 units from a broker in Busan. The longevity report showed three hashboards already running 12% below spec. We renegotiated and saved enough to cover six months of electricity at our Daegu site.— Min-jun K., small-scale mining operator, Daegu
The power audit was thorough. I appreciated that they did not just hand us a spreadsheet — they walked through every line and explained why the M50S ranked lower for our humid warehouse setup. Took longer than I expected, but the detail was worth it.— Sarah L., facility manager, Gyeonggi Province
Recent Field Notes
Guides and observations from our evaluation bench
Why Hashboard Thermal Variance Predicts Early Failure
A 3°C spread between hashboards on a used S19 often precedes a 10% hashrate drop within 60 days. Here is what we measure and why it matters.
Calculating True Cost-per-TH at Korean Electricity Rates
Purchase price is only the first line. We walk through a 24-month cost model for S19j, M30S, and S19 XP at ₩115/kWh.
Fan Bearing Failure in Humid Daegu Summers
Humidity above 75% correlates with a 2.3x increase in fan replacements. Practical steps for warehouse operators.