You can find the most commonly asked questions of our clients here

Frequently asked questions

Don't know how to mine Bitcoin and other cryptocurrencies? Read the FAQ


The Marketplace in our app is designed to be intuitive, making it as easy as possible for you to buy and sell mining machines. On the platform, you can offer your own machines for sale and also browse all machines available for purchase. Each device includes detailed information, which appears when you click on the listing. You can find the Marketplace in the Client Zone under the "Marketplace" tab in the menu.

If you decide to sell your machine, you can create a listing on the "Marketplace" by simply clicking the "+Offer machine for sale" button in your client zone. Then select the device, set the sale price, and choose your preferred currency. You can offer the machine in multiple currencies simultaneously, including fiat currencies (USD, EUR, CZK) and cryptocurrencies (BTC, USDT). Read more.

After clicking on the machine you want to purchase, all details about its history will be displayed. For the actual purchase, you will have two options: buy the machine immediately at the listed price or offer a lower price to the seller. Read more.

If you wish to make the payment immediately after purchase, click on the "Continue to payment" button, where all the necessary payment details will be displayed. You can also find the payment details under the "My bids" -> "Payment in process" tab, where all machines awaiting your payment are listed. You have 5 days from the closure of the deal to make the payment.

No. Neither modification nor cancellation of a BID is possible. By creating a BID, you agree to the binding nature of this action.

Yes. You can cancel your listing in My Listings under the Marketplace tab. Once you click on a specific listing machine, you have the option to edit or remove the listing.

If you're interested in haggling on price, use the Place a bid option. A bid is the amount you offer to the counterparty to buy the machine, and is usually less than the amount the seller has posted for the machine. Placing a Bid is binding and if it is accepted by the counterparty, you become the new owner of the machine upon payment of the amount you bid. If the bid is not accepted - it will be automatically cancelled within 72 hours.

Getting started

Bitcoin is an internet payment network and also the cryptocurrency used in this network. The main uniqueness of bitcoin is its full decentralization; it is designed so that no one, not the author or other individuals, groups or governments, can influence the currency, counterfeit it, seize accounts, control the money flow or cause inflation. There is no central point in the network, nor is there anyone who can make decisions about the network. The final amount of bitcoins is known in advance and the release of bitcoins into circulation is defined in the protocol source code.

Mining pool is one of the groundbreaking inventions in the world of cryptocurrencies. By using a sharing system where each miner gets a share based on how much they have contributed to the mining. This has dramatically increased the efficiency of mining. Each pool is essentially a network managed by an admin or company and together they form one big supercomputer. This then ensures that rewards are paid out regularly. The mining on the pool is fairly distributed according to the exact performance provided.

Yes. The prices of machines are always valid for a maximum of 24h and we can only guarantee their price once the amount is credited to our account. Therefore, the price correlates with the development of the BTC price and in the order of tens of thousands of crowns.

It is the process of verifying transactions and adding them to the so-called "block chain". It is an expensive and computationally intensive process. By providing computing power, you earn cryptocurrency without having to put money into it.

First and last name, date of birth, place of residence, telephone number and email.

Purchase of machinery

We are a crypto mining company. Any legal or natural person can participate in crypto mining thanks to our simple business model. You just need to choose from the offer on our website, in the section of machines offer (link: The amount of investment is always a minimum of one machine. After signing the "Machine Supply Contract" and paying the deposit, we order the machine and deliver it to the hosting site. This is followed by signing the "Machine Management Agreement" and connecting the machine to the pool. At the same time, we send login details to our software where you can monitor and manage your machine portfolio. The mining goes to your wallet automatically, straight from the pool.

It depends on what machine you are buying. Sometimes the machine offered is already in hosting. Its price is higher than the price of the machines in stock at the manufacturer, but the connection is immediate upon receipt of payment. However, the average delivery time is within 30 days after payment. Everything always depends on the manufacturer and the carrier. For this reason, we are unable to guarantee deadlines. As a rule, however, the wiring time is faster than the mentioned 30 days.

We will need: First and last name, date of birth, place of residence, phone number and email.

Yes, it is fixed for 1 year from the time of engagement. We usually submit a bid for the next year within 2 months before the current contract expires.

Crypt mining offers no guarantees. Profit is based on the price of Bitcoin, the price of energy and, most importantly, the difficulty of mining. It is a very risky type of business. We, as a mining company, take the following approach to the current price. As long as you hold the crypto and don't exchange, you don't realize a foreign exchange loss/gain. Most of our clients are mining and holding crypto.

Yes it is and there are several ways.
1. Sell your machine. In this case we undertake to provide the same service to the new owner of the machine. We can help you to sell your machine.
2. Disconnect the machine. When the service contract expires, you can disconnect the machine and move it either to another hosting or directly to your home. The entire process is set up and paid for by the machine owner. However, due to its noisiness, high operating temperature and the need for specialist servicing, we do not recommend this step. Other negative aspects are the economic ones. Our hosts are always in locations with surplus energy on the grid and on renewable sources. Therefore, we can offer an unbeatable price for the aforementioned energies. It is not possible to disconnect the machine and store it on the hosting. We do not provide this service.

The payout of the harvest is done automatically to a wallet chosen by the client. The client can change this wallet at any time in the 2BMiner software. For security reasons, we do not keep the mining on our wallets, but send it directly from the pool to the clients.

Mining on L7 machines, with our solution, is quite unique and brings high returns.

Payment can be made in CZK, EUR, USD, USDT, USDC or upon request and prior arrangement, also in BTC. If you wish to pay in Bitcoin, the procedure is as follows: select USDT as the payment currency when making the purchase. After completing the order, contact us and we will promptly send you the relevant payment details along with the exact amount due in BTC to your email. Everything is calculated based on the current exchange rate.

Our contracts are available for review at this link:

It is not necessary to provide your wallet address at the time of purchasing the machine and creating the contract. Your wallet can be set and changed anytime during our cooperation. You set up the BTC address in your 2bminer client zone.

Yes, the machine can be purchased by both individuals and legal entities. We will then prepare the contracts in your name or in the name of the company. Legal entities from abroad can also purchase equipment from us.

When purchasing, in addition to the price of the machine, you also pay a fee for energy and management for the entire year in advance. This fixed fee ensures an energy subscription for the whole year regardless of price changes. At the end of the prepaid period, we will inform you in time about the need to pay another annual fee.

Operation and service

Throughout the lifetime of the machine we provide the client with free lifetime service.

The client gets 24/7 access from us to manage a monitor their mining, through the 2BMiner web application, to which they get unique login details (link:

This is a completely normal phenomenon. The mining calculation process never has a stable output, although it is expected to be stable (especially with respect to hashrate and earnings). In addition, mining is also affected by the condition of the machine, the mining environment, the stability of the mining network and many other factors. In order to maintain the most stable earnings, it is necessary to ensure as many of the above factors as possible.

The machines we purchase are brand new and under warranty from the manufacturer. We strive to achieve the longest possible machine life through our care and maintenance. Currently, the life expectancy is expected to be somewhere between 6-10 years. We are able to extend this life by about 4 additional years by cooling in mineral oil etc. The ultimate amount of payback is determined by several factors. The difficulty of mining, the price of BTC, halving and the average hashrate performance of your machine (this is the only factor we can influence).

All of our machines on the website are new and come with a one-year manufacturer's warranty. Only with us will you have, in addition to the one-year manufacturer's warranty, a free lifetime service for the lifetime of the machine. So you don't have to worry about anything else but the profits from mining!

The development of the cryptocurrency exchange rate, the amount of difficulty of mining and the associated annual earnings.

Based on a signed "Service Contract" with our company, we undertake to carry out monitoring 365 days a year. This includes maintenance, restarts, cleaning (which takes place once a month), negotiation of lower energy prices for the next year, compensation, fault reporting and subsequent resolution.

If you are not exchanging from BTC to FIAT (USD, EUR, AED, ..), the exchange rate is not that important for you. BTC is a long-term store of value, so most clients mine it, hold it and wait for a more favorable exchange rate.
Mining has to be profitable in the long run, otherwise BTC transactions would have no one to "count" (mining principle) and BTC would disappear. Currently, most of the machines in the network are outdated and with much lower performance than what we offer in our portfolio. It is the older, less powerful machines that would be the first to be disconnected and that would mean only one thing. A noticeable drop in difficulty and with it a higher return on our powerful machines. This is the main advantage of the combination of the most powerful machines and cheap energy.

All the locations we select for your machines undergo a stringent selection process before they are added to our list of hosting centers. One of the most important criteria we focus on is security, which means that all our hosting centers meet the highest possible level of security.

It is not possible to guarantee the profitability of the machine as it is an investment whose returns are influenced by the movements of cryptocurrency market values. However, we do guarantee to provide you with the most ideal conditions possible for your mining operations. We will ensure complete service and do everything to make the machine mine at the highest possible level. The profitability numbers that are visible on our website next to each machine, are only indicative and are based on an average mining of the past weeks.

Uptime is the time during which a machine is active and mining. 2Bminer guarantees an uptime of 95 % every year. This means if the downtime in mining exceeds 5 % of the time in a year, whether due to service or any other reason, you will not be charged for energy during this excess downtime; we will cover it for you. The time during which the machine is offline will automatically extend the prepaid electricity and management period.

2Bminer provides a full service - this means from the purchase of equipment to its placement and subsequent management. The interest in placing client’s machines in our hosting centers is subject to a size of 1 Megawatt. For our regular clients, we offer the option where, after individual consultation, we can meet their requirements and also take care of individual machines.

Mine crypto with us!