Operator notes for Bitmain Antminer Z15 Pro 860K: power, setup checklist, and ROI estimator.
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Antminer Z15 Pro 860K — Operator Notes
Practical notes for running a Bitmain Antminer Z15 Pro (860 KSol/s / model 240-Z) on Equihash (Zcash / Horizen).
I bought this unit from z15pro860.com and wrote this so other operators don’t have to piece specs together from mixed “840K” listings.
Specs below follow Bitmain Support values for the 860K model. Always verify on Bitmain Support for your exact batch.
Quick facts
| Item | Typical value |
|---|---|
| Model | Z15 Pro · 240-Z |
| Algorithm | Equihash |
| Coins | ZEC, ZEN (and other Equihash where supported) |
| Hashrate | 860 KSol/s (±3%) |
| Wall power @ 25°C | 2780 W (±5%) |
| Efficiency | 3.31 J/KSol (±5%) |
| AC input | 200–240 V only |
| Current | 20 A total (2× 10 A inputs) |
| Recommended AC capacity | ~4000 W |
| Noise | ~75 dBA @ 25°C |
| Size / weight | 428×195×290 mm · ~16.9 kg net |
| Network | RJ45 10/100 |
Not a Bitcoin miner. It does not run SHA-256.
What’s in this repo
docs/setup-checklist.md— unbox → first hashdocs/power-and-wiring.md— voltage, cords, breakersdocs/roi-worksheet.md— how to estimate paybacktools/roi_estimate.py— tiny CLI estimatortools/sample_inputs.json— example numbers
Buy / unit notes (transparency)
- Seller I used: z15pro860.com
- Ordered as an original Bitmain Z15 Pro 860K; paid in crypto
- Shipping / warranty = whatever that seller lists, plus Bitmain manufacturer warranty when it applies (often ~180 days from delivery — confirm with them)
This repo is not affiliated with Bitmain or any retailer. Just personal notes from running the box.
First-hour overview
- Confirm 200–240 V circuit and two properly rated power cords (≥10 A each). Cords are often not included.
- Place the miner for airflow / noise (garage, shed, colo — not a quiet bedroom).
- Connect Ethernet, power on, open the miner UI from your LAN.
- Point to an Equihash pool (ZEC or ZEN), set wallet + worker name.
- Watch hashrate stabilize near 860 KSol/s and wall draw near ~2.8 kW.
Details: docs/setup-checklist.md
Daily energy (rule of thumb)
At 2780 W continuous:
kWh / day ≈ 2780 × 24 / 1000 = 66.72 kWh/day
Electricity cost:
$/day ≈ 66.72 × your_$/kWh
Example: at $0.10/kWh → about $6.67/day in power alone (before pool fees).
ROI (honest version)
Revenue moves with coin price and network difficulty. Treat any calculator as a snapshot.
daily_profit ≈ daily_gross_revenue × (1 - pool_fee) - electricity_cost
payback_days ≈ hardware_cost / daily_profit (only if profit > 0)
Use tools/roi_estimate.py with your own revenue estimate from a profitability site.
Common pitfalls
- Running on 110–120 V — can damage the unit; needs 200–240 V
- Undersized cords / one weak AC lead
- Confusing older “840K” marketing with the current 860K rating
- Ignoring noise / heat / neighbor constraints
- Expecting BTC mining — wrong algorithm
Disclaimer
Mining can lose money. Hardware, electricity, and markets change. This guide is operator notes, not financial advice. Double-check firmware, pool, and electrical work against local codes; use a qualified electrician when unsure.
License
MIT — see LICENSE. Specs cited from manufacturer documentation; trademarks belong to their owners.
Similar repos
Operator notes for Bitmain Antminer Z15 Pro 860K: power, setup checklist, and ROI estimator.
See the codeSee what people are saying
README
Antminer Z15 Pro 860K — Operator Notes
Practical notes for running a Bitmain Antminer Z15 Pro (860 KSol/s / model 240-Z) on Equihash (Zcash / Horizen).
I bought this unit from z15pro860.com and wrote this so other operators don’t have to piece specs together from mixed “840K” listings.
Specs below follow Bitmain Support values for the 860K model. Always verify on Bitmain Support for your exact batch.
Quick facts
| Item | Typical value |
|---|---|
| Model | Z15 Pro · 240-Z |
| Algorithm | Equihash |
| Coins | ZEC, ZEN (and other Equihash where supported) |
| Hashrate | 860 KSol/s (±3%) |
| Wall power @ 25°C | 2780 W (±5%) |
| Efficiency | 3.31 J/KSol (±5%) |
| AC input | 200–240 V only |
| Current | 20 A total (2× 10 A inputs) |
| Recommended AC capacity | ~4000 W |
| Noise | ~75 dBA @ 25°C |
| Size / weight | 428×195×290 mm · ~16.9 kg net |
| Network | RJ45 10/100 |
Not a Bitcoin miner. It does not run SHA-256.
What’s in this repo
docs/setup-checklist.md— unbox → first hashdocs/power-and-wiring.md— voltage, cords, breakersdocs/roi-worksheet.md— how to estimate paybacktools/roi_estimate.py— tiny CLI estimatortools/sample_inputs.json— example numbers
Buy / unit notes (transparency)
- Seller I used: z15pro860.com
- Ordered as an original Bitmain Z15 Pro 860K; paid in crypto
- Shipping / warranty = whatever that seller lists, plus Bitmain manufacturer warranty when it applies (often ~180 days from delivery — confirm with them)
This repo is not affiliated with Bitmain or any retailer. Just personal notes from running the box.
First-hour overview
- Confirm 200–240 V circuit and two properly rated power cords (≥10 A each). Cords are often not included.
- Place the miner for airflow / noise (garage, shed, colo — not a quiet bedroom).
- Connect Ethernet, power on, open the miner UI from your LAN.
- Point to an Equihash pool (ZEC or ZEN), set wallet + worker name.
- Watch hashrate stabilize near 860 KSol/s and wall draw near ~2.8 kW.
Details: docs/setup-checklist.md
Daily energy (rule of thumb)
At 2780 W continuous:
kWh / day ≈ 2780 × 24 / 1000 = 66.72 kWh/day
Electricity cost:
$/day ≈ 66.72 × your_$/kWh
Example: at $0.10/kWh → about $6.67/day in power alone (before pool fees).
ROI (honest version)
Revenue moves with coin price and network difficulty. Treat any calculator as a snapshot.
daily_profit ≈ daily_gross_revenue × (1 - pool_fee) - electricity_cost
payback_days ≈ hardware_cost / daily_profit (only if profit > 0)
Use tools/roi_estimate.py with your own revenue estimate from a profitability site.
Common pitfalls
- Running on 110–120 V — can damage the unit; needs 200–240 V
- Undersized cords / one weak AC lead
- Confusing older “840K” marketing with the current 860K rating
- Ignoring noise / heat / neighbor constraints
- Expecting BTC mining — wrong algorithm
Disclaimer
Mining can lose money. Hardware, electricity, and markets change. This guide is operator notes, not financial advice. Double-check firmware, pool, and electrical work against local codes; use a qualified electrician when unsure.
License
MIT — see LICENSE. Specs cited from manufacturer documentation; trademarks belong to their owners.