We sell, host
and repair miners.

It depends mainly on the electricity price and the specific miner. For every miner on our website we show today's earnings and payback, and you can switch the calculation between running at home with your own price per kWh and our hosting from 1.14 Kč/kWh. We recalculate the values every hour based on network difficulty and exchange rate.

It depends on how much hashrate you want and where the miner will run. Try our investment calculator: enter an amount and it will put together the most profitable combination of miners from our shop and show the payback – for running in our hosting and at home.

Hosting starts at 1.14 Kč/kWh including management. We have 11 locations in data centres with cheap electricity. By prepaying electricity for 1, 3 or 7 years you save up to 30%. Details are on the ASIC miner hosting page.

Yes. Our shop is in Prague 10, Rostovská 260/2b, open Mon–Fri 9:00–17:00.

We give a 24-month warranty on new miners. If the miner runs in our hosting, we guarantee it for 7 years – repairs are handled in our own service centre in Prague.

Yes. We repair everything on the market: besides ASIC miners, graphics cards, where we have extensive experience, as well as laptops, computers, monitors, projectors and other electronics. The only things we don't take are large household appliances such as fridges or washing machines. Bring your equipment to our shop at Rostovská 260/2b, Prague 10. More on the PC and laptop repairs page.

Yes. We supply AI servers with pre-installed software. We agree in advance what you want to run on the server and prepare it precisely for that – once switched on, it's ready to work. We put the configuration together for your task, not from a catalogue. More on the AI servers page.

No. Earnings depend on network difficulty, the cryptocurrency's exchange rate and the electricity price, all of which change. The figures on our website are today's values, not a forecast.

Yes. We sell as the Czech company Kentino s.r.o., Company ID 05066743, VAT ID CZ05066743. You receive a VAT invoice with every order, which a business can claim.

For a flat or office, standard 230 V miners from our Home mining category are a good fit – they're quiet and their heat warms the room. More powerful and noisier machines can be quietened with our soundproof box, or left to run in hosting.

Today far less than on an ASIC miner, and at normal Czech electricity prices often not at all. How much a specific card earns is shown on our Graphics card profitability page – more than 70 NVIDIA, AMD and Intel cards with live data.