Can a Bitaxe Really Find a Block?

Yes — a Bitaxe can find a Bitcoin block, and several already have. On January 11, 2024, a miner in the United States pointed a single Bitaxe Ultra (~0.5 TH/s) at a solo pool while the network ran near 525 EH/s — a device nearly two billion times smaller than the network it was competing against. The daily probability of solving a block was on the order of 1 in 7 million. It solved block #826,562 anyway, and the operator woke up to a 6.25 BTC coinbase worth roughly $200,000 at the time.

It has happened more than once since. As of mid-2026 there are multiple documented cases of Bitaxe-class devices finding Bitcoin blocks solo — not dozens, but more than zero. And “more than zero” is the only number that matters when the question is “is it possible?” The sharper question is the one this guide answers: under what conditions does it become a sensible thing to do, and which chain should you actually be hunting in 2026?

Key takeaways

• It’s real but rare on Bitcoin: documented Bitaxe-class BTC blocks exist (e.g. #826,562 in 2024, #887,212 in 2025), but the mean time for a single Bitaxe is measured in tens of thousands of years.
• Per-hash odds are identical to an industrial farm — you simply submit fewer hashes. The chip doesn’t know it’s small.
• The smaller SHA-256 chains used to be the easy answer — but they’ve grown. BC2 alone expanded roughly 30× in 2026, so a single Bitaxe no longer finds daily blocks there.
• For a realistic shot in 2026, stacked devices on small chains win: a NerdOCTAxe on XEC, BC2 or BCH2 still finds blocks on the order of days to weeks; a single Bitaxe on those chains is now patient (weeks to months).
• Small-chain difficulty moves fast — always check live numbers on the Network Radar before deciding, because a static table goes stale within weeks.

The history nobody mentions to first-time Bitaxe owners

Solo mining lore is full of long-shot wins. The most famous Bitaxe-class hits are worth knowing because they’re genuinely documented, not folklore:

• January 2024 — A Bitaxe Ultra (~0.5 TH/s, BM1366) solves Bitcoin block #826,562 via a solo pool. 6.25 BTC, pre-halving, ~$200k at the time.
• March 2025 — A Bitaxe Ultra (~0.48 TH/s) finds block #887,212. 3.125 BTC payout (~$260k post-halving). Widely reported as a roughly 1-in-a-million daily shot, the device drawing about 15W on a desk.
• Late 2025 — A ~6 TH/s home setup hits a BTC block at odds reported near 1-in-180-million, covered by mainstream tech press.
• April 2026 — A ~230 TH/s solo miner (S21-class, well above Bitaxe scale) solves block #943,411 for 3.139 BTC (~$210k), at roughly 1-in-28,000 daily odds — a reminder that “solo” spans everything from a Bitaxe to a rack.

These wins are remarkable not because the math says they’re impossible — it says they should happen eventually, somewhere on the network — but because they happened on a single device that fits in a sandwich box. That’s the culturally significant part. Solo mining democratized the lottery, and the Bitaxe is what that looks like in hardware form.

The Bitaxe family — what’s actually under the hood

The Bitaxe is open hardware: schematics are public, and anyone can build one (many do). The commercial models that matter:

The Gamma is the current sweet spot — the same chip family as the industrial S21 Pro, packed onto a single-chip board. Efficiency under 17 J/TH is genuinely impressive at this scale, the power draw fits a USB-C PD adapter, and the heat output is roughly that of a desk lamp.

The NerdAxe / NerdQAxe / NerdOCTAxe extensions

NerdQAxe and NerdOCTAxe take the Bitaxe philosophy and multiply it — same chips, but stacked. This matters a lot in 2026, because on the smaller chains the extra hashrate is the difference between “patient” and “regular”:

The math: real expected times by Bitaxe model and chain

The formula, one more time:

Mean time to block (days) ≈ network hashrate ÷ your hashrate ÷ 144

Network hashrates as of mid-2026 (these change constantly — verify current values on our live Network Radar or miningpoolstats.stream):

• BTC: ~980 EH/s = 980,000,000 TH/s
• BCH: ~3.5 EH/s = 3,500,000 TH/s (volatile)
• XEC: ~50 PH/s = 50,000 TH/s
• BC2: ~10 PH/s = 10,000 TH/s (grew ~30× in 2026; difficulty swings widely — see below)
• BCH2: small and variable — check the live Radar

The big change since this guide first appeared: the small chains are no longer tiny. When early Bitaxe owners discovered BC2, it was running a few hundred TH/s and a single Gamma could expect a block every couple of days. By mid-2026 BC2’s network sits near 10 PH/s — roughly thirty times larger — so the easy-daily-block era there is over. The chains are still far more accessible than Bitcoin, but the honest 2026 picture is different from the 2025 hype.

Bitaxe Ultra (0.5 TH/s) — the entry point

Bitaxe Gamma (1.2 TH/s) — the workhorse

NerdQAxe+ (~5 TH/s) — the four-chip stack

NerdOCTAxe (~11 TH/s) — the desk monster

Read these tables once, then read them again. The math is unambiguous: Bitaxe-class hardware is built for the smaller chains. On BTC you’re playing a lottery whose expected time exceeds recorded human history. On XEC, BC2 and BCH2 the odds become human-scaled — especially with a stacked NerdQAxe or NerdOCTAxe. Both are valid. Both are solo mining. Just understand which one you signed up for.

The small chains (BC2 and BCH2) — read this carefully

Here’s the part that gets the most outdated advice on the internet. BC2 and BCH2 are SHA-256 chains with far lower difficulty than Bitcoin, so your hash is the same shape but you’re a meaningful fraction of the network instead of a rounding error. That part is still true. What changed is the size of that network.

BC2 uses Bitcoin’s legacy 2016-block difficulty retarget. When its hashrate climbs faster than the retarget can follow, difficulty lags and block times stretch out — at the time of writing BC2 blocks are arriving around two hours apart instead of the ten-minute target, which means a difficulty drop is overdue. The practical effect for a Bitaxe is that BC2 odds swing widely: right after a downward retarget a Gamma’s mean time can be on the order of weeks, while at peak difficulty before a drop it can stretch beyond a year. BCH2 forked from BC2 and switched to the BCH-style ASERT algorithm, which adjusts every block and avoids those violent swings — so BCH2 tends to be steadier, but its absolute hashrate moves as renters rotate in and out.

The honest bottom line: neither chain is a guaranteed daily block for a single small Bitaxe anymore. A NerdQAxe or NerdOCTAxe is where these chains still shine — days to a couple of weeks per block is realistic. The reward is modest (50 BC2 is worth roughly $9 at current prices, per WhatToMine), but you’ll actually find blocks. Because these numbers move week to week, treat any static table — including this one — as a snapshot, and check the live Network Radar and odds calculator before you commit hardware to a chain.

The Bitcoin lottery — when it actually makes sense

If a Bitaxe Gamma’s mean time to a Bitcoin block is ~15,500 years, why does anyone do it? Three honest reasons:

1. The asymmetric payoff. The Bitaxe costs ~$250 plus a few dollars a month in electricity. If it ever hits a BTC block, the payout is 3.125 BTC — around $190,000 at current prices. That’s lottery-ticket math: a tiny, fixed cost against a life-changing, near-impossible prize.
2. The decentralization argument. Every Bitaxe mining BTC adds a sliver of independent hashrate. The network is marginally more decentralized when small miners participate, and some people accept the bad odds as an ideological contribution.
3. It’s quietly fun. The dashboard, the hum, the “best share” climbing, the non-zero chance every ten minutes that this is the one. Some people enjoy this the way others enjoy chess problems.

A note on “expected value”: at today’s BTC price and difficulty, the expected annual return of a lottery Bitaxe is a few dollars, while running it costs more than that in electricity — so the EV is mildly negative, not positive. People who tell you Bitcoin lottery mining is “positive EV” are usually quoting an old, higher price or a smaller network. Mine BTC on a Bitaxe for the lottery and the principle, not for profit. (This is not financial advice.)

None of those are bad reasons. They’re just not profit-maximizing reasons. If your goal is to find blocks regularly, point your Bitaxe at a smaller chain.

Heat, power, and where to put the thing

A single Bitaxe puts out roughly the heat of a 17-watt bulb. You’ll feel the heatsink warm in your palm, but it’s not a fire risk and it won’t heat a room. Placement options:

• Bedside table: the fan is audible (about as loud as a quiet desktop). Some find it soothing; some don’t.
• Office desk: common. Fan whine is the usual complaint.
• Closet shelf: fine as long as air can move. Don’t bury it under blankets.
• Garage / utility room: best for noise sensitivity; watch summer temperatures.

NerdQAxe (~75W) and NerdOCTAxe (~150W) put out genuine heat — plan for ventilation. A NerdOCTAxe in a closed cabinet will cook itself. Open shelf, decent room temperature, fan facing outward, and you’ll be fine.

Power costs

Approximate monthly cost at $0.15/kWh (around the US average):

• Bitaxe Ultra (15W): ~$1.65/month
• Bitaxe Gamma (17W): ~$1.85/month
• NerdQAxe+ (75W): ~$8.10/month
• NerdOCTAxe (150W): ~$16.20/month

For European miners on $0.30-0.40/kWh, double or triple those numbers. They’re still small — a NerdOCTAxe at $0.40/kWh runs about $43/month, less than a streaming subscription and with considerably better drama.

Configuration: getting the most out of your Bitaxe

Voltage and frequency

The Bitaxe firmware (AxeOS) lets you tune voltage (mV) and frequency (MHz) from the web UI. Stock settings are conservative; the community generally pushes them harder:

Push too hard and you’ll see hardware errors climb on the dashboard. Back off until errors are <1%. Watch chip temperature: under 65°C is comfortable, over 75°C is rolling the dice on chip lifespan.

Stratum URL & wallet setup for SoloFury

For a Bitaxe pointed at SoloFury, configure the AxeOS settings as:

Pool URL:   stratum+tcp://bch.solofury.com:7070    # BCH
            stratum+tcp://bc2.solofury.com:8080    # BC2
            stratum+tcp://bch2.solofury.com:8585   # BCH2
            stratum+tcp://xec.solofury.com:9090    # XEC
            stratum+tcp://btc.solofury.com:6060    # BTC (lottery)
Username:   YOUR_WALLET_ADDRESS.worker1
Password:   x
            # European miners can use the eu- prefix for lower latency:
            stratum+tcp://eu-bc2.solofury.com:8080
            stratum+tcp://eu-bch2.solofury.com:8585

The username format is critical: WALLET_ADDRESS.WORKER_NAME. The wallet address before the dot determines where the block reward goes if you find one; the worker name after the dot is just a label so you can tell your devices apart.

AsicBoost

Modern Bitaxe firmware supports AsicBoost (version-rolling), and SoloFury’s stratum servers support it natively — no special configuration needed. Expect a ~10-15% efficiency improvement on chips that have it enabled. (For the full story, see our AsicBoost deep dive.)

Variance — what to expect emotionally

Solo mining is a Poisson process: blocks arrive randomly, not on a schedule. Even on a chain where your mean expected time is, say, 10 days, the actual distribution is wide:

• ~63% chance you find a block within 1× your mean time
• ~86% chance within 2× the mean
• ~95% chance within 3× the mean
• ~5% chance you wait longer than 3× the mean
• ~1% chance you wait longer than ~4.6× the mean

Translation: on a small chain with a NerdOCTAxe, most stretches you’ll get a block or two on the expected cadence. Sometimes three in quick succession. Sometimes nothing for a stretch that feels broken. It’s not broken. It’s variance. The trick is to internalize the math before you start, so the dry spells don’t feel like failure — they’re statistics. (We go deep on this in our mining variance and Poisson math guide.)

What happens if you actually find a block?

Here’s what no one tells you. The Bitaxe dashboard shows “BLOCK FOUND!”, the pool records the solve, and the coinbase transaction lands on-chain within about ten minutes. You don’t have to do anything. The reward is sent to the wallet address you configured as your stratum username — no claim form, no payout request, no waiting.

Then you’ll spend the next hour staring at the block explorer, refreshing, double-checking the address, calling friends. This is normal. It’s why people solo mine. For peace of mind, set up your wallet on a hardware device (Ledger, Trezor) before you start mining — if you find a block to a hot wallet on your phone, you’ll spend the day in a panic about phone security. Easier to get this right upfront.

The honest recommendation for Bitaxe owners (2026)

One Bitaxe Supra or Gamma: if you want to actually find blocks, point it at a small chain — xec.solofury.com:9090, bc2.solofury.com:8080 or bch2.solofury.com:8585 — and be patient: think weeks to months per block, not days. If you want the Bitcoin moonshot instead, point it at btc.solofury.com:6060 and enjoy the lottery.

Multiple Bitaxe / a NerdQAxe / NerdOCTAxe: this is where solo mining gets genuinely rewarding in 2026. Concentrate the hashrate on XEC, BC2 or BCH2 and you can realistically expect blocks on the order of days to weeks. Spread a portion across chains if you enjoy variance, and watch the live Radar — when a small chain is mid-retarget and difficulty has just dropped, that’s the moment your odds are best.

You want the Bitcoin moonshot: point one device at BTC, accept that you’re playing a 15,000-year lottery, and enjoy the ride. The math says it’s possible. History says it’s been done. Whether it’ll be done by you is what the dice decide.

Either way, your Bitaxe is doing exactly what it was designed to do — independent solo mining at consumer scale, the same per-hash probability as an industrial farm, just fewer hashes. The chip doesn’t know it’s small. Don’t tell it.

Frequently asked questions

Can a Bitaxe really find a Bitcoin block?

Yes. It’s extremely unlikely on any given day, but it has happened — documented examples include block #826,562 in January 2024 and #887,212 in March 2025, both solved by Bitaxe Ultra devices. Every valid hash has the same chance as one from an industrial farm; a Bitaxe simply produces far fewer of them.

What are the actual odds of a single Bitaxe hitting a BTC block?

For a 1.2 TH/s Bitaxe Gamma against a ~980 EH/s network, the mean time to a block is roughly 15,500 years, which works out to around a one-in-several-million chance on any given day. It’s a lottery, not a strategy.

Which chain gives a Bitaxe the best chance of finding a block?

In 2026 the most accessible SHA-256 chains for small hardware are XEC, BC2 and BCH2. A stacked NerdQAxe or NerdOCTAxe on these can expect blocks on the order of days to weeks; a single small Bitaxe is more like weeks to months. Always confirm current difficulty on the live Network Radar, because these chains move quickly.

Didn’t a Bitaxe used to find BC2 blocks every day or two?

It did, when BC2 was running only a few hundred TH/s. BC2’s network grew roughly 30× during 2026 (to around 10 PH/s), so a single Bitaxe no longer finds daily blocks there. The chain is still far more accessible than Bitcoin, but the easy-daily-block era is over — which is exactly why you should check live numbers rather than trust old guides.

Is solo mining a Bitaxe profitable?

Not in the conventional sense. On Bitcoin the expected return is below the electricity cost, so it’s a hobby and a lottery. On small chains you can find blocks regularly, but the per-block reward is small (tens of dollars), so it’s better understood as inexpensive fun with a real chance of a payout than as a profit engine. This is not financial advice.

How much does it cost to run a Bitaxe?

A single Bitaxe draws 15-18W, costing roughly $1.50-2.00 per month at average US electricity rates. A NerdOCTAxe at 150W costs around $16/month in the US, or up to roughly $43/month at high European rates.

What happens to the reward if I find a block?

On a non-custodial solo pool like SoloFury, the block reward is paid directly to the wallet address you set as your stratum username, via the coinbase transaction, within about ten minutes. There’s no claim step and no custodial middleman — which is why setting up a secure wallet beforehand matters.

Do I need a special pool for a Bitaxe?

You need a pool that supports solo mining with configurable difficulty (vardiff) for low-hashrate devices, and ideally version-rolling for AsicBoost. SoloFury supports all five SHA-256 chains with that in mind, so a Bitaxe can be pointed at any of them with the standard AxeOS stratum settings.