NerdQAxe++
The sweet spot of the open-source lineup and the most efficient device on this site. Four BM1370 chips deliver 4.8 TH/s at around 71W — roughly 15 J/TH, matching modern industrial hardware — and revision 6.1 boards tune comfortably to 6 TH/s at about 100W.
What it costs, what it might win
Running costs across the site use this rate. The default is a typical household tariff — check your own bill for the real number.
The odds, honestly
At the current network difficulty of 1.262e+14, a NerdQAxe++ is expected to find a block roughly once every 3.58K years. That is an average across infinite attempts, not a countdown — a block could come tomorrow, or never.
If you pooled instead
Point the same device at a normal mining pool and you would receive the statistical average steadily instead of gambling on it: about $0.0000 a month, against $8.82 of electricity. At your electricity rate that loses money — every 241 sats mined costs $0.2897 in power. Buying the same BTC on an exchange would be cheaper.
Full specifications
- ASIC chip
- 4× BM1370
- Stock hashrate
- 4.80 TH/s
- Tuned hashrate
- 6.00 TH/s
- Stock power
- 71 W
- Tuned power
- 100 W
- Efficiency
- 14.8 J/TH
- Tuned efficiency
- 16.7 J/TH
- Power input
- 12V DC, 10A
- PSU included
- No
- Connectivity
- Wi-Fi 2.4GHz
- Display
- 3.2in colour LCD
- Noise
- ~45 dB
- Dimensions
- 180 × 110 × 60 mm
- Weight
- 0.4 kg
- Form factor
- desktop
- Firmware
- NerdQAxe (AxeOS fork)
- Open source
- Yes
- Solo mining
- Yes
- Pool mining
- Yes
- Built-in full node
- No
- Released
- 2025
The verdict
Best for: The default choice once you are past the first-device stage.
Strengths
- Best efficiency here at ~14.8 J/TH stock
- Four times the hashrate of a Gamma for four times the price, with better efficiency
- Colour display and mature firmware
- Hydro variant available for sustained overclocks
Trade-offs
- Needs a proper 12V supply, not a phone charger
- Audible under load — not a bedroom device
- Revision matters; older boards overclock worse
About NerdQAxe / NerdMiner
Community designs from shufps that scale the Bitaxe idea to four and eight ASICs on one board. NerdQAxe boards ship with the OSMU-derived NerdQAxe firmware and are the usual step up when a single-chip Bitaxe stops being enough.
github.com/shufps/qaxe →