NerdQAxe++ 4.8TH/s Bitcoin Solo Miner

Q: What voltage does it need?

An ordinary 120 V wall outlet. The miner itself takes 12 V DC from the supply in the box; that supply plugs into a normal socket. At roughly 60–80 W it draws well under an amp at the wall, so there is no dedicated circuit, no electrician and no 240 V feed involved — which is most of the point of this machine.

Description

The NerdQAxe++ is a four-chip open-source Bitcoin solo miner: 4 × BM1370 ASICs, about 4.8 TH/s, and roughly 60–80 W at the wall depending on how you tune it. It is the same generation of silicon Bitmain puts in its current flagship machines, in a package that sits on a desk, runs off a 12 V brick and does not need a 240 V circuit or ear protection.

NerdQAxe++ specifications

Hashrate	Approx. 4.8 TH/s
ASICs	4 × BM1370
Rated efficiency	15 J/TH (manufacturer figure, best case)
Rated power	Approx. 60–68 W (manufacturer figure)
Measured power	Independent testing commonly reports ~76–80 W under full load — expect the real number to sit above the rated one
Input voltage	12 V DC supply
Network	2.4 GHz Wi-Fi
Cooling	Air, single fan
Firmware	Open source

We are quoting both the rated and the measured power numbers on purpose, because the published pair does not survive division. 68 W across 4.8 TH/s is 14.2 J/TH, not the 15 J/TH on the box, and the ~78 W that independent testing actually measures works out at 16.25 J/TH. Budget for the measured figure. It is still roughly twice as efficient per terahash as a used S19, which is the genuinely surprising thing about this machine.

Be honest with yourself about solo mining

This is the part most listings skip, so here it is plainly. Bitcoin network hashrate is measured in zettahashes per second. 4.8 TH/s is a vanishingly small fraction of that. Pointed at a solo pool, a NerdQAxe++ is a lottery ticket, not an income stream — the realistic outcome is that it never finds a block, and the unrealistic outcome is that it finds one and pays for itself several hundred times over.

Buy it because you want to run your own node and miner, learn the stack properly, hold a ticket in the draw, and heat a desk with 70 W instead of 3 kW. Do not buy it expecting a return. If you want hashrate that actually earns proportionally, you want a pool-connected Antminer or the genuinely quiet Avalon Q — and even those we will not quote profitability on, because it changes with difficulty and price every day.

What’s in the box

Listed as new, with fan and 12 V power supply. Confirm the exact bundle contents (stand, PSU type, plug standard) and the warranty terms with us before you order — kit contents vary between batches of this hardware and we would rather tell you than have you guess.

Buying from ING Mining

We buy, repair, host and resell this hardware ourselves, so ask us the awkward questions before you order — power draw at the wall, board revision, what the fans sound like in a garage. Browse the rest of the catalogue at all miners.

If you are new to mining, the ASIC miner buying guide explains hashrate, J/TH and what full-size hardware really costs to run — the context that makes a solo miner like this a cheap way to learn the trade first.

Weighing this against a full-size machine? NerdQAxe++ vs Antminer S19 puts the two head to head on our own arithmetic: the NerdQAxe++ is about twice as efficient per terahash, the S19 is roughly twenty times the hashrate, and at a normal household electricity rate neither one earns — but being wrong about the S19 costs about sixty times as much per month.

Questions buyers ask about this machine

What voltage does it need?

An ordinary 120 V wall outlet. The miner itself takes 12 V DC from the supply in the box; that supply plugs into a normal socket. At roughly 60–80 W it draws well under an amp at the wall, so there is no dedicated circuit, no electrician and no 240 V feed involved — which is most of the point of this machine.

Is this a complete, working machine?

Yes. This is a complete miner sold new, not a spare part and not a repair project: the board, the heatsink and fan, the stand and a 12 V supply. Plug it in, join it to 2.4 GHz Wi-Fi, point it at a pool or a solo pool and it hashes. What it is not is an income machine — at 4.8 TH/s it is a hobby and a lottery ticket, and the section above says so plainly. Confirm the exact bundle for your unit with us on +1 (781) 577-0377 or ns@ingmining.com before you order, because kit contents vary between batches.

What should I check the day it arrives?

Photograph the pallet or box before you open it, keep the packaging, and run the 48-hour acceptance test straight away. Freight claim windows are short, and a fault found on day two is a conversation while a fault found on day thirty is an argument. Our own six-step bench procedure is published in full, so you can repeat exactly what we did.

Shipping cost for this exact item, and how warranty and returns work here, are answered in the Shipping & buying tab on this page. Anything else, ask a person on +1 (781) 577-0377 or ns@ingmining.com — we would rather talk before you buy.

Related hardware and where this sits in the store

This is the one machine in the catalogue a single solar panel can run: about 80 W, or roughly 0.5 kW of array to keep it going around the clock. See what size solar array each miner needs.

The machines buyers weigh against this one, in the order the decision usually goes:

Used Antminer S19 95TH/s — roughly twenty times the hashrate for a fraction of the money per terahash, and it needs a 240 V circuit, a shed and cheap power to make any sense
Canaan Avalon Q 90T — the step between the two: 90 TH/s at about 45 dB, quiet enough for a utility room, still not a desk machine
Used Antminer S19k Pro 120TH — the same argument as the S19 with a better efficiency figure behind it

Categories: Bitcoin miner, New ASIC miners and Air Cooling.

Where this listing sits

This one is on the new shelf. New stock, as described in the listing. Any manufacturer warranty term that applies is named in the description; where none is named, none is claimed.

What our grades mean

These are the only words we use, and each one means a specific thing. They are not interchangeable and we do not soften them to move stock.

New	Unused stock. Factory sealed unless the listing says otherwise — “new, open box” means exactly that, and the listing will say it.
Tested working	Second-hand, and it ran on our bench at the hashrate the listing states. We measured it; we are not repeating what the last owner told us. Expect cosmetic wear.
Refurbished	Tested working, plus work done: cleaned, thermal paste and fans dealt with, failed components replaced. The listing says what was actually done to that unit rather than using the word as decoration.
As-is / for parts	Sold with no working claim at all, at a price that reflects it. Buy these to repair or to harvest. If a listing says as-is, assume it does not hash until you have proved otherwise.
Untested	We have it, we have not powered it, and we are not going to pretend we did. Rarer than as-is and always stated explicitly.

What a grade here does not mean

Cosmetic wear is not a fault. Dust, scratches, scuffed labels and discoloured plastics are normal on hardware that has been earning. We photograph what we have; if the pictures matter to you, ask for more and we will take them.
A grade is not a warranty. Warranty terms are stated per listing, never per store — see the Shipping & buying tab. A tested-working grade describes what the machine did on our bench, not what we owe you in six months.
A boosted hashrate is not a spec. Where a unit ships on tuned firmware we say so and we give the factory figures too, because overclocking raises power faster than it raises hashrate — a tuned machine is less efficient per terahash than stock, not more.
We will not invent a grade to fill a field. If a unit came in without history and has not been through the bench, its listing says that.

How the grade gets decided

A used-hardware seller who will not tell you how they test is asking you to take the grade on trust. Ours is published: the six-step bench procedure every machine goes through, and the five measurements that get recorded — per-board hashrate, chip count, measured wall power rather than the nameplate figure, hardware error rate, and temperature under sustained load. When it reaches you, run the 48-hour acceptance test straight away, while the freight claim window is still open.

Buying second-hand for the first time? How to buy a used ASIC miner without getting burned is the long version, written from the repair bench rather than from a spec sheet.

Shipping

Shipping this item inside the United States costs $49.99 by UPS Ground — that is the rate the checkout will charge, read from the store’s own shipping settings, not an estimate. Orders ship within 7 business days.

Outside the United States the checkout quotes a flat international rate. On multi-unit or pallet orders, contact us before ordering so freight to your destination can be confirmed properly. What to check when the pallet arrives, and how a freight claim works, is covered in the mining hardware shipping guide.

What to do the day it arrives

Photograph the pallet or the box before you open it, and keep the packaging until you are satisfied. Freight claim windows are short, and damage found on day two is a conversation while damage found on day thirty is an argument.

Then run the 48-hour acceptance test straight away, while that window is still open. It is the same ground our own bench covers, so you can compare like for like: how the grade on this listing was arrived at, and the five measurements we record, are set out in the Condition & grading tab on this page.

Condition, warranty and returns

Condition: New — as described on this listing.

Warranty is stated per listing, not across the catalogue. Some units carry a manufacturer term and say so above, naming the term and the date it runs from. Many units, particularly used and AS-IS stock, carry none, and those listings do not claim one. There is no blanket warranty covering a catalogue that runs from sealed factory stock to a hashboard sold for parts. For what a mining warranty normally covers, see ASIC miner warranty explained.

Returns: ask for the terms on this unit before you pay. No single returns window is published for the whole store, because the sensible terms on a tested working machine and on a board sold AS-IS for parts are not the same terms. Email or call and ask what applies to this exact item — it is a two-minute conversation and a great deal cheaper than a dispute.

Where you are going to run it

Two questions decide whether a machine like this works where you live, and neither of them is about the miner: can the circuit carry it, and what does your electricity cost? Most full-size machines here want a dedicated 240 V circuit and run at 70–75 dB continuously. A few do not — the Avalon Q publishes 45–65 dB and runs on 110–240 V — so read the voltage and noise figures on this listing rather than assuming. ASIC miner power requirements covers breaker sizing and what the install actually involves; cooling covers where the heat and the noise end up.

If your power is not genuinely cheap, hosting is the question to be asking instead of which miner to buy. Break-even electricity rate is hashprice divided by (24 × J/TH), and hashrate cancels out of it entirely — which is why a cheap old machine on expensive power loses money faster than an expensive new one does. The buying guide has the arithmetic; work out your own number before you buy anything.

If hosting is the answer, get written answers on three things before you sign: who pays for repairs, what the uptime commitment actually pays out when it is missed, and how curtailment is handled. A flat per-machine monthly rate is where most of the unpleasant surprises live. Types of mining farm compares the models and hosting versus cloud mining covers why owning the hardware is the better end of that trade. Ask us before you commit — it is a five-minute call and a great deal cheaper than a contract you cannot get out of.

What we do once it is racked, wherever that is. Deployment, firmware and monitoring are a service we run rather than a line on a page: pool and network setup, Braiins OS or VNish tuning, offline alerts, and board-level fault-finding when a machine stops hashing — ASIC mining consulting sets out what that covers. The hosting agreement itself is between you and the facility. What we can give you is the number most hosting disputes turn on: what this machine measured at the wall on our bench, so a shortfall on site is a figure to compare against rather than an argument about what it should have been doing.

Who you are buying from

ING Mining LLC, Hanson, Massachusetts. ING MINING® is a registered U.S. trademark; our marketplace feedback is on the reviews page and the longer version of who we are is on about. Reach a person on +1 (781) 577-0377 or ns@ingmining.com.

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Description

NerdQAxe++ specifications