Frequently asked questions (FAQ)

A mining device uses powerful processors to solve the complex puzzles used to secure and validate transactions on a blockchain. By providing some of the global hash power needed, you receive rewards and get paid in crypto-currency. Then you can choose to keep coins or exchange it for other coins or currency.

Yes, mining is becoming easier to setup and understand. But you should consider mining as a high-risk investment, the return on investment is not guaranteed, and the benefits are highly variable due to the volatility of the cryptocurrency market.

Most machines consume a lot of electrical energy, produce a significant amount of heat and generate a lot of noise.

You must choose your machines according to your ability to tolerate these three factors.

When you mine your gain will be stored in a wallet. 

We recommend that you use a hardware wallet, to be the full owner of your coins. 
Do not keep all your earnings in an online wallet (exchange, pool...).

The best known and most trusted hardware wallets are: Trezor and Ledger.

To convert specific coins into Bitcoin or any other cryptocurrencies you will have to go through an exchange service. There are many, here the most famous: Binance, HitBTC, CEX, Kraken, Bittrex.

For example, here is a projection of the size of the DAG file for Ethereum Classic (ETC):

- Over 4Gb on September 2025
- Over 6Gb on February 2032
- Over 8Gb on May 2038

The real-time earnings show you the benefits you can expect from a device if you already owned and operated the miner.

This view allows you to see key information at a glance.

Yes, in the 'Local preferences' section, you can:

• Change default currency (USD, EUR, GBP...)
• Electricity cost (price of KWh)

Profits are calculated in real-time according to device specifications and external variables:

• Network difficulty
• Block reward
• Coin value
• Exchange rate

Displayed values are here to provide actual earnings information for each device for comparison purpose.

Return on investment (ROI) is the number of days between the purchase and the day you have generated enough income to equal the cost of the miner.

• ROI = Time to release date + Delivery time + Number of days to break-even.

This forecast is for informational purpose only, due to market-dependent earnings.

We try to check vendors to provide the safest links possible, but we cannot guarantee any of them.

You must be aware that all external links are out of our control, and one store may be safe for some users and give one bad experience to another.

All labels and risk estimates are given "as is" based on our experience and feedback from the community.

Each manufacturer or vendor defines his own rules:

• Bank wire transfer (usually in USD)
• Credit card or PayPal (not often)
• Crypto-currencies (mostly)

If you don't have cryptocurrencies yet, you can create an account on CoinBase (or any other similar website) to buy some with your credit card.

Some accept Bitcoin (BTC), other Litecoin (LTC) or Ethereum (ETH). If you need to exchange some coin for another one you can use Changelly.

Of course, this site paid his server bills thanks to advertising. We hope to be able to remove them in a near future if more donations come, but for now, we need it.

If you want to advertise, you can contact us or use the self-service for standard banners here.

You can contact us by filling this form: Contact.

We are sometimes online and available for chat (status visible at the bottom right of each page, we use an external module for this feature called JivoChat). The answer is not guaranteed, but you can try!