NerdQaxe ++ | 4.8 TH/s

The NerdQaxe++ is an open-source miner with four BM1370 ASICs on one board: around 4.8 TH/s combined at roughly 80 W – more than three times what a single Bitaxe with the same chip manages, and still a device for a shelf. An ESP32-S3 runs the miner itself, AxeOS lives directly on it, and the 1.9-inch TFT shows the figures without a browser.

Cooling is by air. The 92 mm PWM fan moves a lot of air even at low speed; you define the curve in AxeOS. It stays audible, clearly so at full load – in exchange there is no loop and no second system that can fail. Roughly 80 W cost about €16.10 a month at an electricity price of €0.28/kWh; check it against your own tariff in the mining calculator.

When solo mining, the NerdQaxe++ works on the same task as any large farm: finding a valid block. Every hash is a ticket, and 4.8 TH/s means more tickets per second. If the hit lands on your device, the full block reward of currently 3.125 BTC plus transaction fees goes to your own Bitcoin address. Until then the ticket costs you about €16.10 of electricity a month, and your miner helps secure the network along the way. How that works in practice is covered in our solo mining guide.

• The most affordable route to 4.8 TH/s: the same nominal performance costs more as the Copper Pro. Only the water-cooled Hydro goes beyond it, at around 6 TH/s.
• A fan you can buy anywhere: 92 mm PWM is a standard size from PC building. If it gives up after a few years, a replacement is not a special part.
• Control instead of a cloud contract: you set pool, frequency, voltage and fan curve; hash rate, shares and temperature are read live.
• Openly documented: hardware design and AxeOS are open source. Updates, spare parts and community knowledge do not depend on one manufacturer.

All three run four BM1370 ASICs and AxeOS. Cooling, hash rate, power draw and price differ – the decision comes down to location and budget. All device classes side by side are in the overview buy a Bitcoin miner.

• NerdQaxe++, roughly 80 W: air cooling with one 92 mm fan. Fits a homelab, study, shelf or utility room where an audible fan bothers nobody.
• NerdQaxe++ Hydro, 100 W, around 6 TH/s: the water loop carries the heat away faster, so the ASICs clock higher – and the noise happens at the radiator instead of over the board. Costs more to buy and about €4 more in electricity a month.
• NerdQaxe Copper Pro, roughly 80 W: solid copper and two PWM fans (60 and 92 mm). For running around the clock and for everyone who wants to push the frequency up.

When in doubt, the NerdQaxe++ is the sensible starting point: same chip, same firmware, lowest price.

You need a socket, your 2.4 GHz Wi-Fi and a browser – no Raspberry Pi and no always-on PC. Every step is shown with pictures in the NerdQaxe setup guide.

For home miners who want noticeable hash rate without changing price class. For people moving up because a single-chip Bitaxe has become too small. And for solo miners who want to multiply their tickets without wiring up four miners.

It is less suitable if the device has to sit in a bedroom overnight: the 92 mm fan is audible, and then the faster Hydro is the better answer. Anyone running permanently at the frequency limit is better served by the copper mass of the Copper Pro. And if it should be more hash rate, the NerdOctaxe at around 12 TH/s is the next step up.

The box contains the miner, a DC power supply, a 3D-printed stand and a quick start guide. Beyond that you only need a free socket, 2.4 GHz Wi-Fi and your Bitcoin address.

For continuous operation the location matters: free air intake and exhaust, no closed cabinet. Roughly 80 W of waste heat noticeably warm a small room; in a warm spot the fan spins higher.

The NerdQaxe++ is complete out of the box. Extending it pays off mostly where it stands.

• NerdQaxe Performance Case for a closed build with guided airflow when the miner is on display.
• NerdQaxe mount for a secure stand on a desk or shelf, with a free air path under the board.

The NerdQaxe++ is the right choice when you want 4.8 TH/s at the lowest price in this range and an audible fan is no problem where it stands – four ASICs, open firmware and your own Bitcoin address for about €16.10 of electricity a month.