Bitaxe Gamma 602
The current default recommendation. A single BM1370 — the same chip Bitmain puts in the Antminer S21 Pro — on an open-source board with a web UI, for under a hundred dollars. Revision 602 cleans up the power delivery of the 601 and moves to USB-C PD, so you can run it from a laptop charger.
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 Bitaxe Gamma 602 is expected to find a block roughly once every 14.32K 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 $2.24 of electricity. At your electricity rate that loses money — every 60 sats mined costs $0.0734 in power. Buying the same BTC on an exchange would be cheaper.
Full specifications
- ASIC chip
- 1× BM1370
- Stock hashrate
- 1.20 TH/s
- Tuned hashrate
- 1.55 TH/s
- Stock power
- 18 W
- Tuned power
- 30 W
- Efficiency
- 15.0 J/TH
- Tuned efficiency
- 19.4 J/TH
- Power input
- USB-C PD, 5V/20V
- PSU included
- No
- Connectivity
- Wi-Fi 2.4GHz
- Display
- 0.91in OLED
- Noise
- ~35 dB
- Dimensions
- 100 × 90 × 45 mm
- Weight
- 0.25 kg
- Form factor
- desktop
- Firmware
- AxeOS
- Open source
- Yes
- Solo mining
- Yes
- Pool mining
- Yes
- Built-in full node
- No
- Released
- 2025
The verdict
Best for: First-time lottery miners who want the community-standard device.
Strengths
- Best price-per-terahash of any single-chip board
- Runs on a standard USB-C PD charger, no dedicated PSU
- AxeOS web interface with solo pool presets and live stats
- Large community, fully open schematics and firmware
Trade-offs
- Wi-Fi only — no Ethernet, which matters for long uptime
- Sold by many builders at varying quality; buy from a known vendor
- Stock fan is audible in a quiet bedroom
About Bitaxe
The reference open-source solo miner, designed by Skot and maintained by Open Source Miners United. Bitaxe is a hardware design rather than a company: many vendors build and sell boards from the same public schematics, so quality and price vary by builder.
bitaxe.org →