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Solo Satoshi’s current NerdQaxe++ is Revision 7, a compact, open-source Bitcoin miner built around four Bitmain BM1370 chips. The manufacturer advertises about 4.8 TH/s at 69.5 W in stock operation and an overclocked result near 8.1 TH/s at 140 W. It is a credible home-mining experiment; its hash rate is far too small to treat as dependable income, and the higher overclock brings more heat, noise and power-supply demands.
Solo Satoshi’s product information available in August 2026 identifies Rev 7 as the newest version. Older NerdQaxe++ specifications refer to earlier revisions, so buyers should check the revision and included accessories on the listing before ordering. Solo Satoshi’s product page
What the NerdQaxe++ is
The NerdQaxe++ is a small, actively cooled SHA-256 ASIC miner intended for home, desktop, pool and solo-mining use. Its four BM1370 chips provide more hash rate than a single-chip Bitaxe-style device, while an ESP32-based controller, 2.4-GHz Wi-Fi and a 1.9-inch LilyGO color LCD make it configurable and observable without a separate computer. Power enters through a 12 V DC XT30 connector.
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Solo Satoshi lists the Rev 7 device at approximately 3.54 × 4.72 × 1.57 inches and about 0.8 lb with heatsink. It remains a fan-cooled ASIC, not a silent or fanless desktop accessory.
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What changed in Revision 7
NerdQaxe++ is a product family whose specifications have changed across revisions. Solo Satoshi’s Rev 7 announcement identifies a redesigned voltage-regulator configuration as the main hardware change from earlier models. Rev 7 uses a two-phase TPS546D24A arrangement associated with the Bitaxe GT design, and the current firmware branding is Nerd*OS. Solo Satoshi’s Rev 7 announcement
The redesign and relocated temperature sensors are documented hardware changes. Solo Satoshi says the new power delivery is intended to improve thermal behavior, stability and overclock headroom; that does not establish better long-term reliability for every buyer. Older Rev 6 and 6.1 figures should not be treated as Rev 7 specifications.
Rev 7 performance: stock versus overclocked
The figures below are manufacturer-supplied claims and tests, not independent measurements. Solo Satoshi states an approximately ±15% tolerance. Its test setup used a stock Thermalright heatsink, Noctua NF-A8 rear fan, Thermal Grizzly thermal paste and a Mean Well power supply.
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| Measure | Stock claim/test | Overclock claim/test |
|---|---|---|
| Hash rate | Approximately 4.8 TH/s | Approximately 8.1 TH/s |
| Power draw | Approximately 69.5 W | Approximately 140 W |
| Efficiency | Approximately 14.48 J/TH | Approximately 17.28 J/TH |
| Clock and voltage in cited test | 600 MHz / 1,150 mV | 1,000 MHz / 1,330 mV |
| ASIC temperature in cited test | Approximately 60°C | Approximately 66°C |
| Fan behavior in cited test | About 37% | Up to 100% |
The 8.1 TH/s result is a claimed overclock ceiling, not an out-of-box guarantee. Results depend on the individual chips, cooling, ambient temperature, power supply and settings; overclocking may also affect warranty coverage. Treat the stock claim as the more relevant baseline if you want a quieter, simpler setup.
Is it quiet enough for a desk?
Solo Satoshi gives an approximate 40 dB figure at default settings and says overclocked operation can approach 55 dB. These are manufacturer-stated values, not a universal independent test: measurement distance, room noise, fan model and speed, installation, ambient temperature and settings all affect the result.
At stock settings, it should be quiet relative to conventional industrial ASIC miners and may suit a home office or living room. It still has a fan, and overclocking can make it conspicuous in a quiet room. Consider the stock configuration the sensible choice when noise matters more than maximum hash rate.
Power supply, heat and electricity cost
The miner takes 12 V DC through XT30. Solo Satoshi offers a tested 124 W supply, but says it is rated for about 99.2 W continuous operation under an 80% derating guideline. That is ample for stock operation, but not a comfortable continuous-power match for a claimed 140 W overclock. For sustained high overclocking, use a reputable, correctly specified 12 V supply with adequate continuous-current capacity and suitable wiring.
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- Watch for voltage sag, warm cables or XT30 connectors, reboots, ASIC errors, falling hash rate or VRM heat. These can indicate inadequate power delivery or overly aggressive settings.
- If temperatures rise, the fan runs at maximum or hashing becomes unstable, return to stock settings, verify heatsink contact and airflow, and confirm the fan works before trying a lower overclock.
At the advertised 69.5 W stock draw, continuous operation uses about 1.668 kWh per day, 50.0 kWh in 30 days and 608.8 kWh per year. At 140 W, the corresponding figures are 3.36 kWh per day, 100.8 kWh in 30 days and 1,226.4 kWh per year.
| Electricity rate | Stock: daily | Stock: 30 days | Stock: year |
|---|---|---|---|
| $0.10/kWh | $0.17 | $5.00 | $60.88 |
| $0.16/kWh | $0.27 | $8.00 | $97.41 |
| $0.25/kWh | $0.42 | $12.51 | $152.20 |
At the claimed 140 W overclock draw and $0.16/kWh, electricity alone is about $16.13 per 30-day month. Actual costs vary with measured draw and uptime. These figures exclude hardware, pool fees, taxes and replacement parts.
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Setup: connect it and start hashing
Solo Satoshi describes setup as a short browser-based process using the miner’s temporary Wi-Fi hotspot. Interface labels and pool options can change with firmware, so use the instructions shipped with your unit rather than relying on a guessed IP address or menu name.
- Connect the miner to its correctly specified XT30 power supply and switch it on.
- Join the temporary Wi-Fi hotspot broadcast by the miner, then open the Nerd*OS web interface as directed by the current setup instructions.
- Enter credentials for a 2.4-GHz home Wi-Fi network. A 5-GHz-only network will not work.
- Enter the Bitcoin wallet address that should receive any payout. Solo Satoshi recommends a SegWit address beginning with
bc1q; check every character before saving. - Choose a pool or solo-mining endpoint and enter its required connection details, such as URL, port and worker name, as supplied by that service.
- Save the configuration and confirm the miner connects and reports hashing.
Solo Satoshi lists Public Pool and Solo CKPool for solo-mining options and Ocean and Braiins among pool-mining options. That list is not a guarantee that the shipped firmware will always show the same choices or labels; follow the pool’s current connection and payout instructions.
- If the hotspot does not appear, check that the miner is powered and its display is active.
- If your phone joins the hotspot but the interface does not load, disconnect VPN or captive-network services and follow the device’s current setup instructions. Do not guess an IP address.
- If home Wi-Fi repeatedly reconnects, verify the network is 2.4 GHz and re-enter the credentials carefully.
- If hashing does not start, check the wallet address and the pool URL, port and worker name against the pool’s current instructions.
- If power warnings or reboots occur, return to stock settings and check the supply, cable and connector before trying again.
- Do not cut power during a firmware update. If an update fails, use recovery instructions for the exact hardware revision; do not flash a file intended for another revision.
Solo mining, pool mining and the chance of earning
Solo mining means trying to find a Bitcoin block without sharing the reward among ordinary pool participants. At a few terahashes per second, the NerdQaxe++ has extremely small odds relative to the total Bitcoin network hash rate. A successful block can pay the block reward and transaction fees under the relevant arrangement, but there is no predictable schedule or dependable income. Think of it as lottery-scale experimentation.
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A solo pool is not necessarily mining without a pool: it can provide infrastructure and submit work on the miner’s behalf while paying only if that participant’s work contributes to a block. Read the specific service’s payout rules before connecting.
Conventional pool mining combines your work with other miners and can make payouts smaller but more regular. It does not erase electricity costs, pool fees, minimum payout thresholds, Bitcoin-price risk, difficulty changes or withdrawal considerations. Revenue also depends on uptime and actual hash rate, so a single calculator estimate is not a reliable buying case.
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| Option | Published performance and power | Noise and warranty | Best fit |
|---|---|---|---|
| NerdQaxe++ Rev 7 | Solo Satoshi claims about 4.8 TH/s at 69.5 W stock; about 8.1 TH/s at 140 W overclocked. | Solo Satoshi states about 40 dB stock and up to about 55 dB overclocked; lists a 90-day limited warranty. | Open-source experimentation, compact form and overclocking. |
| Canaan Avalon Nano 3S | Canaan’s official page advertises 12 TH/s at 140 W. | The official page advertises 33 dB and a 12-month manufacturer warranty. | Higher advertised hash rate or a commercial product with a longer stated warranty. It uses roughly twice the NerdQaxe++ stock power claim. |
| Smaller Bitaxe models | Solo Satoshi positions these as lower-hash-rate entry-level home miners; comparable model-specific values are not stated in the cited catalog. | Noise and warranty values vary by model and are not stated as a single comparable figure in the cited catalog. | Lower-power or simpler first experiments, depending on model. |
Sources: Solo Satoshi NerdQaxe++ product page, Avalon Nano 3 series and Solo Satoshi miner catalog. The Nano 3S is the clearer choice if published hash rate and warranty matter more than open-source design; the NerdQaxe++ is more distinctive for people who want an open hardware project. Smaller Bitaxe devices suit a different priority: lower power and entry-level experimentation.
What to check before buying
Solo Satoshi’s product page displayed a price range of approximately $258–$306 depending on configuration in its August 2026 snapshot. The final price depends on selected accessories and can change; a catalog listing for an older Rev 6.1 should not be mistaken for Rev 7 pricing. Solo Satoshi’s catalog
Solo Satoshi says units are assembled, tested and flashed before shipment, and lists a 90-day limited warranty. The selected configuration may affect whether the power supply, rear fan or stand is included. Confirm the shipped revision, accessories, AC plug, shipping destination, duties and warranty terms at checkout. For comparison, Avalon’s official page advertised a $100 starting option in an August 2026 snapshot; shipping or fulfillment choices may affect the final cost, and the price is not a like-for-like comparison of included equipment.
Choose the NerdQaxe++ if open-source hardware, compact size, visible telemetry and learning matter more than raw hash rate per dollar. Consider a smaller Bitaxe if lower power and a simpler entry point matter more. Consider the Avalon Nano 3S if you prefer its higher published hash rate and longer stated warranty. Buyers seeking predictable returns should compare total equipment and electricity costs against realistic mining revenue rather than assume a small miner will pay for itself.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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