Solo Mining Hardware: Best ASICs and Bitaxe Picks for 2026

Solo mining hardware ranges from a $200 Bitaxe board to a $7,700 industrial Antminer S23 Hyd, and the device you pick decides your real odds of ever finding a block — not luck. This guide compares hashrate, power draw, and price across the full range, then shows the math behind how long a solo block actually takes.

What Changes When You Mine Alone

Point the same Antminer at a pool and then at a solo pool, and the hardware does identical work — search SHA-256 hashes below a target. What changes is who gets paid. In pool mining, thousands of machines combine hashrate and split every reward into small, steady pieces. In solo mining, your device searches alone, and only your device collects the prize if it finds a valid block.

That one difference flips the payout model. A pool pays out daily, scaled to your share of the work. A solo miner can run for months with nothing, then receive a full block reward in one transaction. Mining difficulty and the Bitcoin network hashrate set the odds either way, but in solo mode your hardware’s hashrate is the whole bet — there’s no pool average smoothing out a weak machine. Solo mining fits hobbyists chasing a long-shot win and people who want to learn mining mechanics hands-on, not anyone counting on monthly income.

Industrial ASICs Built for Solo Mining

A full-size ASIC gives a solo miner the best realistic shot at a block, because raw hashrate scales the odds almost linearly against the network. Three machines define the current tier, and the figures below come from the ASIC Miner Value spec pages for each model — the manufacturers’ own sites publish specifications as images or behind a bot filter.

• Antminer S21 XP Hyd — 473 TH/s at 5,676 W, an efficiency of 12 J/TH, hydro-cooled, released November 2024.
• Antminer S23 Hyd — 580 TH/s at 5,510 W and 9.5 J/TH, released January 2026: more hashrate than the S21 XP Hyd for less power.
• Antminer S23 Hyd 3U — the rack version of the same machine, 1.16 PH/s at 11,020 W, the same 9.5 J/TH. Exactly double the S23 Hyd on both counts, which is what a two-board unit should look like.
• Whatsminer M63S++ — 464 TH/s at 7,200 W, 15.5 J/TH, released December 2024. Worth cross-shopping, but on efficiency it trails both Bitmain machines by a wide margin.

The S23 Hyd beats the S21 XP Hyd on raw hashrate, but hashrate alone doesn’t decide whether a device is worth buying. J/TH efficiency — joules spent per terahash — sets the electricity cost per unit of hashrate, and that cost compounds over the months or years a solo miner typically waits between wins. A less efficient machine needs a noticeably cheaper power rate to match the same odds-per-dollar case as a tighter J/TH number, which is why efficiency, not hashrate, is the number serious buyers compare first.

Desk-Sized Hardware

Bitaxe is an open-source, DIY board that solo miners assemble themselves or buy pre-built from independent builders. Avalon Nano ships plug-and-play instead — no soldering, no firmware compiling, just power and a network cable.

• Bitaxe — 250–500 GH/s drawing up to 15 W, by the figures the Open Source Miners United wiki publishes for the board. The exact number depends on the revision and on how the firmware is tuned.
• Avalon Nano 3 — 4 TH/s at 140 W, 35 dB, released February 2024: roughly ten times a Bitaxe’s hashrate at ten times the power, assembled and ready to run.
• Both run quietly enough for a bedroom or home office and draw little enough power to sit on a normal outlet without a dedicated circuit.

A Bitaxe or Avalon Nano is a lottery ticket you can hold in your hand, not a device that pays for itself on a spreadsheet.

Set expectations before buying either one. The Bitcoin network ran at 1,167.91 EH/s when our own Bitcoin pool page was measured on 6 October 2026; a 4 TH/s Avalon Nano is about one 292-millionth of that, which works out to one block in every 292 million the network finds. A solo win on this tier is a raffle, not a plan. People buy these boards for the thrill of running real mining hardware and for the hands-on education — not because the math says they’ll turn a profit.

Solo Mining Hardware at a Glance

The table below puts every device from the two previous sections on one page. Prices are deliberately absent: they move week to week and differ by reseller, while hashrate, power draw and efficiency are published specifications that hold until the next model.

On published specifications the S23 pair has the strongest claim among the industrial machines: 9.5 J/TH against 12 for the S21 XP Hyd and 15.5 for the M63S++, and that gap compounds over the months or years a solo miner waits between wins. At the opposite end, Bitaxe and Avalon Nano win on accessibility, not on odds.

Choosing a Solo Pool and Connecting Your Hardware

Solo CKPool is the most widely used solo pool for Bitcoin, and both Bitaxe and Avalon Nano point to it the same way an industrial ASIC does — through the miner’s web interface, by entering the pool’s stratum address and your own wallet address as the username. No account signup, no KYC: the payout address is the login.

Solo CKPool charges 2% and holds nothing back: there is no payout threshold, so a win pays the full balance at once. OCEAN charges 2%, or 1% for miners who build their own blocks with its DATUM protocol, and it is non-custodial — it publishes its block templates and the Bitcoin network pays you directly instead of the operator holding a balance for you.

For solo mining that architectural difference outweighs the percentage. A solo payout is one rare event rather than a trickle: with a custodial pool your single win waits until the operator processes a payout, and with a non-custodial one there is nothing to wait for. Note that our Bitcoin pool page lists OCEAN at 0% under TIDES — that is its pooled product, not the solo terms above.

Those two are the only solo pools whose terms are published plainly enough to quote. ViaBTC, Luxor and MolePool also run solo options; read the fee on each pool’s own page rather than trusting a range copied from somebody’s comparison table. Fee differences barely move the outcome anyway: a solo payout is the full block reward minus a percentage, not a recurring trickle, so a one-point gap matters far less than simply winning at all. The alternative to any pool is running your own Bitcoin full node and pointing cgminer or bfgminer directly at it, which removes the middleman entirely but makes you responsible for the node’s sync, storage, and uptime.

The Real Math Behind Your Odds

Your odds of finding a block on any given day come down to one division: your hashrate divided by the Bitcoin network hashrate, multiplied by the roughly 144 blocks mined per day. Mining difficulty is the network’s way of keeping that global block rate near 10 minutes regardless of how much total hashrate joins or leaves — a higher network hashrate pushes difficulty up and shrinks everyone’s individual odds, including yours.

Block discovery behaves like a Poisson process: random, memoryless events with a known average rate but large variance around it. That’s why “one block every N years” is an average, not a schedule. Some Bitaxe owners never win. Some win within their first month. A device averaging one win every four years might realistically win in year one or wait past year ten — the average describes a distribution, not a promise for any single miner.

The average wait time is not the likely wait time — plenty of solo miners who ever win, win well before the average predicts.

Run the division yourself with your device’s rated hashrate against current Bitcoin network hashrate and difficulty figures — both shift regularly, so pull live numbers rather than trusting a figure printed months ago.

Running Costs: Electricity, Heat, and Noise

An industrial ASIC’s electricity bill is the real cost of solo mining, not the upfront hardware price. Take an electricity rate of $0.06/kWh as an example: a 5,676 W Antminer S21 XP Hyd running continuously draws about 136 kWh a day — roughly $8.18 daily and close to $2,985 a year. A Bitaxe at 15 W costs pennies a day by comparison, which is exactly why it’s the choice for people without a dedicated electrical setup.

• Undervolt the ASIC. Dropping voltage trims noise and heat output, costing a small percentage of hashrate in exchange — often a fair trade for a home environment.
• Move it out of living space. A garage, shed, or insulated enclosure handles ASIC fan noise far better than a bedroom or office.
• Put it on a dedicated circuit. A 3,000W-plus miner pulls close to what a single household circuit can safely carry — don’t share it with other appliances.
• Add surge protection. ASICs run continuously for months at a stretch; a cheap surge protector is far cheaper than a replaced power supply.

Electricity cost and J/TH efficiency move together: the better a device’s joules-per-terahash number, the lower its running cost per unit of hashrate over the life of the machine.

Risks and Trade-offs of Going Solo

Solo mining trades a pool’s small, steady trickle for a long silence punctuated — maybe — by one large payout. That trade-off is the entire decision, worth stating plainly before spending real money on hardware. If you want the numbers side by side before committing, compare solo vs pool payouts for Bitaxe miners against the steadier alternative.

Solo mining is a bet with a lottery-sized payout, not a business plan with a projected return.

A failed power supply or control board on a solo rig is yours alone to diagnose — there’s no pool community actively troubleshooting the exact same setup alongside you. Because the odds are genuinely long for anything short of a large ASIC farm, there’s a real chance the hardware never pays for itself before you sell or retire it. This risk profile suits people who’ve already decided the thrill and the learning are worth the entry price, not people evaluating mining as an income stream.

Solo Mining Altcoins Instead of Bitcoin

A smaller proof-of-work coin has a smaller total network hashrate, so the same Bitaxe or ASIC wins a far larger share of its blocks than it would mining Bitcoin. That’s the entire appeal of solo mining altcoins: the odds math from the previous section improves dramatically once the denominator shrinks.

The trade-off is real — smaller coins carry more price volatility and thinner liquidity, so a win can be harder to convert at a stable value. Several SHA-256 and Scrypt-based coins beyond Bitcoin are solo-mineable with the same or similar hardware covered in this guide, each with its own network hashrate worth checking before you commit a device to it.

What Happens When You Actually Find a Block

A confirmed solo block pays the full reward directly to the wallet address you supplied when connecting to the pool, typically within one or two confirmations after the pool submits it to the network. Move the funds to cold storage immediately — a solo win is exactly the kind of lump sum that makes a wallet a target.

Most tax jurisdictions treat mining income as taxable the moment you receive it, valued at that day’s price, with capital gains calculated separately if you sell later. Rules vary significantly by country and change over time, so confirm the specifics with a tax professional before filing rather than assuming your jurisdiction matches a forum post.

If you’re still weighing which device to buy, see how we calculate real solo odds for the full probability breakdown behind the math in this guide, and size whatever you buy to what you can afford to tie up for years — not to what the lottery metaphor makes feel safe.

Frequently asked questions

Sources

• Bitaxe hashrate and power — Open Source Miners United wiki
• Avalon Nano 3 specifications — ASIC Miner Value
• Antminer S21 XP Hyd specifications — ASIC Miner Value
• Antminer S23 Hyd specifications — ASIC Miner Value
• Antminer S23 Hyd 3U specifications — ASIC Miner Value
• Whatsminer M63S++ specifications — ASIC Miner Value
• Solo CKPool fee — CKPool
• OCEAN fees and payouts — OCEAN