Frequently asked questions
Answers about the Antminer Z15 Pro 860K, Equihash mining, crypto checkout, shipping and warranty.
About the store
Who runs this store?
We sell original Bitmain ASIC hardware with published manufacturer specs, crypto-only checkout, and direct email support. We currently focus on the Antminer Z15 Pro 860K (Equihash / ZEC & ZEN).
Do you take pre-orders?
No. We only sell units available for dispatch from current inventory. Upcoming batch months on the product page are for planning only and do not open pre-orders.
Mining basics
What is an ASIC miner and how does it work?
An ASIC (Application-Specific Integrated Circuit) is hardware built for one job: running a crypto hash algorithm as efficiently as possible. The Z15 Pro is built for Equihash, not for Bitcoin’s SHA-256. It is far more efficient at Equihash than a GPU or CPU would be for the same work.
What is hashrate and why does it matter?
Hashrate is how many hash calculations the miner performs per second. For the Z15 Pro it is measured in KSol/s (kilosolutions per second). Higher hashrate means a larger share of network work and, all else equal, more mining reward. Official typical hashrate for this model is 860 KSol/s (±3%).
What is mining efficiency (J/KSol)?
Efficiency is electricity used per unit of hashrate. For the Z15 Pro, Bitmain lists 3.31 J/KSol at 25°C (±5%). Better efficiency means lower power cost for the same hashrate, which matters for long-term profitability.
Pool mining vs solo mining?
Most operators join a mining pool and receive steady proportional payouts. Solo mining keeps the full block reward if you find a block, but odds are very low for a single machine. Use a reputable Equihash / Zcash pool unless you understand solo risk.
How do I estimate ROI?
Daily profit ≈ daily gross revenue (after pool fees) minus electricity cost. Electricity ≈ (2780 W ÷ 1000) × 24 × your $/kWh. Payback ≈ hardware cost ÷ daily profit. Coin price and network difficulty change, so treat any figure as an estimate. Use the ROI calculator on the product page.
How noisy is an ASIC and can I run it at home?
The Z15 Pro is rated around 75 dBA at 25°C (fan at high RPM). That is loud, similar to a vacuum running continuously. A garage, basement or dedicated room is typical. Bedroom or living-room use usually needs acoustic isolation.
How long do ASIC miners last?
With clean airflow, stable power and normal temperatures, ASICs often run reliably for several years. Economic obsolescence (newer, more efficient models) can matter before physical failure. Follow Bitmain’s operating limits and keep dust under control.
Antminer Z15 Pro 860K
Is Antminer Z15 Pro 840K the same as the Z15 Pro 860K?
Older ads sometimes use “840K”. We sell the current Antminer Z15 Pro 860K with Bitmain Support’s typical 860 KSol/s rating (model 240-Z).
Which coins can the Z15 Pro mine?
Equihash coins supported by Bitmain for this model: Zcash (ZEC) and Horizen (ZEN). It cannot mine Bitcoin (SHA-256) or switch algorithms.
Why do you list 2780 W instead of 2560 W or 2650 W?
Current Bitmain Support specs for Z15 Pro (240-Z) list 2780 W (±5%) and 3.31 J/KSol at 25°C. Older manuals or third-party pages sometimes show different estimates. We follow official Support values.
Does the unit include a power supply?
Yes. Factory PSU is included. Power cords (two cables rated ≥10 A) are not included, which is common for ASIC distributors.
Can I pre-order future batches?
No. Upcoming batch months on the product page are for planning only. We sell units currently in stock.
Is this new original Bitmain hardware?
Yes. We sell new original Bitmain Antminer Z15 Pro units with standard manufacturer warranty terms.
Payment & orders
Which payment methods do you accept?
Crypto only: BTC, USDC and USDT. We do not accept cards or bank transfer on this storefront.
How does crypto payment work?
Place the order at checkout, then send the exact total to the wallet address shown on the confirmation screen. Do not send funds before you receive that address.
When is payment required?
Full payment in advance is required before we reserve and dispatch the hardware. This is standard for ASIC retail.
What if stock sells out after I order?
If we cannot fulfil an accepted order, we will contact you and refund crypto received for that item according to our terms (network fees may apply where they cannot be recovered).
Need help with an order or payment?
Email orders@z15pro860.com with your order number (starts with Z15-) and the email used at checkout. Or use the contact form.
Cancellations & market volatility
Can I cancel after placing an order?
ASIC prices and mining economics can move quickly. Once an order is placed and payment is in process or confirmed, orders are generally final, except where mandatory consumer law requires otherwise. See our Terms & Conditions.
Why are ASIC orders usually non-cancellable?
Hardware demand and resale value track crypto markets. Allowing free cancellation would leave the seller exposed to rapid price swings. Please only order if you are ready to complete payment and take delivery.
What should I consider before buying?
Check your electricity rate, cooling and noise constraints, Equihash pool fees, and that you want ZEC/ZEN exposure specifically. Use the ROI calculator and read the specs before checkout.
Power & setup
How much power does the Z15 Pro use?
Typical wall power is 2780 W at 25°C (±5%), about 66.7 kWh per day if it runs 24/7. Input: 200–240 V AC, 50–60 Hz, 20 A (two AC inputs, 10 A each). Adapted AC capacity recommended: 4000 W.
Can I use a normal household outlet?
Many home circuits cannot safely supply ~2780 W continuously. Use correct voltage (200–240 V), properly rated cords and circuits, and have a qualified electrician review the install if unsure. Wrong voltage can damage the unit.
Are power cords included?
No. Buy two PDU/power cords rated ≥10 A that match your region and PSU inlets.
How do I set up the miner?
Connect power and Ethernet, access the miner’s web UI on your local network, and point it to your pool and wallet per Bitmain’s manual. Keep ambient temperature within 0–40 °C and provide clear airflow.
What maintenance is needed?
Keep fans and heatsinks free of dust, monitor temperatures, and use a stable power supply. Overheating and dirty intakes are common causes of downtime.
Safety tips?
Do not overload circuits, use quality cables, avoid moisture, and inspect for heat damage. Mining hardware is high-load equipment; treat it like industrial gear.
Warranty & repairs
What warranty do I get?
Standard Bitmain manufacturer warranty is typically 180 days from delivery, subject to Bitmain’s terms and normal use. Details: Warranty & repairs.
What does warranty cover?
Defects in materials and workmanship under normal use. It does not cover wrong voltage, liquid damage, unauthorised modification, or use outside published environmental limits.
How do I start an RMA?
Email support@z15pro860.com with order number, model, serial if available, fault description and photos/logs. Do not ship hardware until you receive written return instructions.
What voids warranty?
Unauthorised repairs or mods, misuse, physical abuse, and external damage such as surges or incorrect power can void coverage.
Shipping & delivery
How much is shipping?
Fixed shipping is $150, added at checkout.
Who pays customs, VAT or duties?
Import duties, VAT and brokerage in your country (if any) are the buyer’s responsibility.
How do I get tracking?
After payment confirmation and dispatch we email tracking details. You can also use Track order with your order number and email.
When does shipping start?
Dispatch timelines start after on-chain payment is confirmed. Delivery estimates vary by destination and carrier.
Customer support
How do I contact you?
Use Contact us, or email support@z15pro860.com / orders@z15pro860.com.
What are your support hours?
Monday–Friday, 09:00–17:00 UTC. Messages outside these hours are handled on the next business day.
What should I include in a support email?
Order number, product model (Antminer Z15 Pro 860K), purchase email, and a clear description of the issue. For hardware faults, include logs or photos when possible.
Do you give investment advice?
No. We sell mining hardware and publish specs so you can model costs yourself. Mining profitability is not guaranteed.