Blog
From the racks.
Mining hardware, cooling and heat reuse: figures and lessons from our business.
01 / 9 posts
Buying & market
Compare models, generations and prices before you order.
Calculate mining profitability yourself
Four variables decide whether a miner makes money – hashrate, efficiency, electricity price and hashprice. This is how you work out revenue, electricity costs and break-even electricity price yourself in a few minutes.
New or used – how to spot a good used miner
With used miners, what counts is not the model name but what is inside – chip generation, hashboard version and substrate material. A checklist for the offer, the log and the unit.
Pre-order or in-stock units – where the risk really lies
Pre-ordered miners are cheaper but only arrive in weeks or months. With Bitcoin the risk of the waiting time is low, with altcoin miners it can cost the entire revenue.
Air, hydro or immersion – which cooling for which site
The cooling type determines the electrical connection, noise, infrastructure and whether you can use the waste heat. A comparison of the three designs with a clear match to the site.
S21 or S23 – what the new generation brings and who should wait for it
The S23 series needs about a third less electricity per terahash than the S21 series, but is only available as a pre-order. How big the difference is in numbers and at which electricity price it tips the balance.
Small home miners – what the Avalon Mini 3 and Avalon Q can and cannot do
Home miners run on a household socket and are quiet enough for the study. What they are good for – as a hobby, as a heater, for lottery mining – and why they are not profit machines.
Understanding hashrate bins – why the same model is sold in several bins
An S21+ Hyd with 358 TH/s and one with 395 TH/s are the same model. Where the bins come from, what really differs between them and how you choose the right one.
Scrypt miners for Litecoin and Dogecoin – merged mining explained
A Scrypt miner earns Litecoin and Dogecoin at the same time with the same computing work. How merged mining works, what you need to set up for it and which units are available.
Bitmain, MicroBT, Canaan, Bitdeer – how the manufacturers differ
Four manufacturers build most Bitcoin miners. They differ in their product range, in hydro temperatures, in fault diagnosis and in accessories. An overview for your purchase decision.