FAQ: answers to questions about buying and managing your miners

Yes. All the products we sell are new, tested before shipping and covered by the manufacturer warranty: 1 year on SHA-256 (Bitcoin) miners and 6 months on altcoin miners.

The manufacturer warranty runs from the invoice date: 1 year on SHA-256 (Bitcoin) miners and 6 months on altcoin miners (Kaspa, Litecoin/Dogecoin, Alephium…). If your machine fails, open a request from our After-sales service and warranty page with the invoice, the serial number and photos or logs: we handle the diagnosis and the follow-up with our workshop or the manufacturer. Damage caused by humidity, dust, power surges or use outside specifications is not covered. The statutory warranties of conformity and against hidden defects apply in addition to the manufacturer warranty.

The price of an ASIC follows the price of the crypto it mines, the network difficulty and our suppliers' rates. We update our prices regularly to stay in line with the market. The price that applies is the price of your order once it has been paid and confirmed by email.

Prices are shown including VAT, with French VAT of 20% for delivery in France. The VAT breakdown and the final total are shown at checkout, depending on the delivery country.

The available payment methods, including bank card, are shown at the payment step. Bank transfer is possible on request before shipping: contact us to receive our bank details. For payment in crypto or in instalments, contact us: the solution depends on your cart.

Yes. Request a quote with your legal details (company name, address, EU VAT number): the invoice is issued in your company's name after the order.

Yes, if your EU VAT number is valid and delivery takes place outside France (VAT reverse charge). Otherwise, French VAT applies.

Yes. Choose the “In-store pickup” option at checkout: we will then offer you a collection slot at our warehouse in Normandy.

New product, tested and delivered in 7 days. Every machine is checked before it leaves; the lead time may vary depending on the destination country and the carrier. Full details are on our Shipping and returns page.

Yes. We deliver to France, the European Union and the United Kingdom, as well as North America and other countries: the shipping rate is calculated at checkout based on your address. Outside the European Union, customs duties and import taxes are paid by the recipient.

An email with the tracking number is sent to you as soon as your order ships. Tracking is also available in your customer account.

Yes, before shipping: write to us as soon as possible with your order number. After shipping, any change depends on the carrier.

Yes. Every machine undergoes a visual inspection and a functional test before dispatch.

Check the parcel in front of the delivery driver and, if it is damaged, record precise reservations with the carrier. Notify us the same day, or at the latest on the first business day after receipt, at [email protected], with photos of the parcel, the product and the carrier's label. Keep the packaging until the claim is closed.

Yes. You have 14 days from receipt to exercise your right of withdrawal. The product must be unused, complete and returned in its original packaging in good condition. Used, incomplete or damaged items are not accepted.

Email us at [email protected] with your order number and the reason for the return. Once the request is accepted, we send you the return address. Ship the parcel with tracking, keep the proof of shipment and let us know by email.

Return shipping costs are at your expense and you choose the carrier. We recommend a tracked shipment insured for the value of the product.

The refund is made to the payment method used for the order, within 7 days of receiving the parcel and checking its condition.

No. A fault falls under the warranty, not the right of withdrawal: open a request from our After-sales service and warranty page and we will tell you what to do.

The choice is yours. It mainly depends on your electricity price, your budget, where the machine will be installed (noise, heat) and your investment horizon. We do not guarantee any profitability: it depends on the coin price, the network difficulty and your cost per kWh. To compare machines, use our profitability calculators or contact us for advice.

A home miner is designed for a living space: it is quiet, offers several power modes and has a refined design. A standard (rack-format) miner is far more powerful, but also far louder and hotter: it needs a technical room, a garage or hosting. A soundproofing kit reduces the noise of a standard miner, but does not turn it into a living-room device.

A miner is noisy, produces heat and needs some maintenance. Before installing a machine at home, check that you have a dedicated electrical circuit and a ventilated room, and that the noise will not disturb anyone. Otherwise, our hosting service runs your machine for you, with monitoring and maintenance included.

Electricity accounts for most of a miner's costs: a 3,500 W ASIC consumes 84 kWh per day. Cheaper kWh directly increases your margin. If your rate is high, choose an efficient machine (low J/TH) or hosting.

Yes. Diagnosis and repair are possible depending on the model and parts availability. Give the exact model and the symptom (photos, logs) by filling in the request on our After-sales service and warranty page.

The purchase invoice, the serial number (readable label), photos or videos of the machine and, for an ASIC, screenshots of the Status and Miner pages, the Kernel Log and the firmware version. This information greatly speeds up the diagnosis.

As a guide: initial diagnosis within 48 business hours of receiving the information, workshop repair in 15 to 25 business days depending on parts, and 30 to 60 business days if the machine goes to the manufacturer's service center.

Yes. We can prepare the machine, configure the pool and wallet and check the hashrate. Ask our support team for a time slot.

First read the manufacturer's manual. To estimate the current: power (W) ÷ 230 V. Example: 3,000 W ≈ 13 A. Plan a dedicated circuit with a suitable circuit breaker and cable cross-section, and have the installation approved by an electrician.

Yes. Allow about 45 minutes to connect and fully configure your miner. Our tutorials explain each step and our support team can help if needed.

Add a hosting-compatible machine to your cart, then, at the delivery step, choose the hosting site instead of shipping. We send you a hosting contract that sets out each party's commitments; the machine is plugged in once the contract is signed and payment is received. See our miner hosting offer.

Our customers' machines are hosted at our site in the United States, at $0.07/kWh with no VAT, on a 12-month contract starting from a single machine. Installation, monitoring and maintenance are included, and rewards are paid directly to your wallet.

Hosting-compatible Bitmain miners, including the Antminer S21+, S21 Pro, S21 XP, AL1 and L9. Find them in our hosting collection or contact us for advice.

The electricity consumed is billed every month (kWh × site rate). The installation fee is €100 per miner with the code HAPPYMINING.

Yes, subject to compatibility and available space. A hosting contract is required, at a higher rate, and racking is done on a confirmed date.

Allow around two weeks after the contract is signed and payment is received. We will give you the date, which depends on the site's queue.