Single-chip open miners

Bitaxe Supra

by Bitaxe (open source), BM1368, open source hardware

The Bitaxe Supra 401 is the Bitaxe generation before the Gamma. Its single Bitmain BM1368 chip hashes about 600 GH/s on 12 to 15 W from a 5 V supply. It uses the same AxeOS browser setup as newer Bitaxes. It is worth buying only if cheap, since the Gamma doubles the hashrate.

Published October 5, 2026. Updated October 5, 2026
Parts of the Bitaxe Supra, numbered as in the drawing
ItemPartFrom the specs
1CoolingHeatsink with a 40 mm 5 V fan. Quiet hum
2Hashing chip1x Bitmain BM1368
3BoardWiFi, 2.4 GHz only
4ScreenShows the miner status
5Power input5 V DC, 5.5 x 2.1 mm barrel jack
Key figures
Hashrate
600 GH/s
Power
14 W
Efficiency
23.3 J/TH
Price range
$60 to $150
Availability: sold new and used.
01

Specifications

Hashrate
About 600 GH/s at stock settings
Power draw
12 to 15 W
Efficiency
About 21 J/TH
Chip
1x Bitmain BM1368
Cooling and noise
Heatsink with a 40 mm 5 V fan. Quiet hum
Connectivity
WiFi, 2.4 GHz only
Power supply
5 V DC, 5.5 x 2.1 mm barrel jack
Size and weight
Palm-sized bare board with screen, no case
Open source
Yes: CERN-OHL-S-2.0 hardware, GPL-3.0 AxeOS firmware
Release year
2024
Firmware
AxeOS (ESP-Miner)
02

Good and less good

Good

  • Cheap way into ASIC mining, especially used.
  • Same open firmware and dashboard as the Gamma.
  • Uses about 120 kWh a year.

Less good

  • Half the hashrate of a Bitaxe Gamma for similar power, so less efficient.
  • At about 0.6 TH/s, solo blocks are a lottery with very long odds.
  • Older model: fewer new units in stock, so check what you are buying.
03

Set it up on DirectPool

The Supra runs AxeOS, the web dashboard served by the miner. After it joins your WiFi, its screen shows an IP address; open it in a browser on the same network.

Type exactly this
Stratum Host
stratum.directpool.io
Stratum Port
3333
Stratum User
your_bc1_address.worker_name
Password
x
Choose your mining region
Showing Europe, Lithuania (main server).
Changing the location only changes the address shown above. Copy it into your miner settings and restart or reconnect the miner. Miners already connected stay where they are. Every server mines the same pool, with the same payouts.
Browser ping, measured live from this page
Europe, Lithuania...
North America, Chicago...
Asia, Jakarta...
This measures your browser connection, not your miner or the full relay-to-pool path.

Replace your_bc1_address with a Bitcoin address you control (bc1 or 3). The part after the dot is a name for this machine, so you can tell your miners apart. Addresses starting with 1 are not accepted.

  1. 1.Power the miner on. On first boot it opens its own WiFi hotspot called Bitaxe_XXXX. Join it from your phone or laptop.
  2. 2.A setup page should open by itself. If not, go to http://192.168.4.1 in a browser.
  3. 3.Enter your home WiFi name and password. It must be a 2.4 GHz network. The miner restarts and joins your WiFi, and its screen shows its new IP address.
  4. 4.Type that IP address into a browser on the same network to open AxeOS, then open Settings (on newer versions, the Pool tab).
  5. 5.Fill in the four pool fields with the values above, click Save, then Restart.

Common mistakes

  • Putting stratum+tcp:// in the Stratum Host field. AxeOS wants the bare host name, with the port in its own field.
  • Typing the Bitcoin address by hand. Copy and paste it from your wallet so one wrong character does not send rewards nowhere.
  • Using a 5 GHz network, or a router that mixes 2.4 and 5 GHz under one name. If the miner will not connect, give the 2.4 GHz band its own name.
  • Forgetting to click Restart after Save. The new pool is only used after the restart.
  • Flashing a firmware file made for a different Bitaxe model. Use the release asset for the Supra (401), or the web flasher, which picks it for you.

After a few minutes, paste your address on the pool page to see the machine. Small miners can take a while to send their first share.

04

Your odds with this miner

Network difficulty
Loading
DirectPool, 1 h avg
Loading
Next block value
Loading
Chance of finding at least one block, with 600 GH/s
SoloWith DirectPool
Per day
Per month
Per year
If DirectPool finds a block, this miner would get about
Loading

These are chances, not schedules. Hashing has no memory: a miner that has not found a block is not closer to one. Open the full calculator

05

Electricity cost

Running all year at about 14 W, the Bitaxe Supra uses about 123 kWh a year.

Price per kWhPer yearPer month
0.10121.02
0.20252.05
0.30373.07

Same currency as your electricity price (dollars, euros, pounds). Real draw depends on firmware settings and frequency.

06

Where to buy

Typical price $60 to $150, checked October 5, 2026. Prices move, check the store. Plain store links. We earn nothing from them.

07

Questions

Bitaxe Supra or Bitaxe Gamma?
The Gamma, unless the Supra is much cheaper. The Gamma hashes about twice as fast for a similar power draw.
Can the Supra run the latest AxeOS?
Yes. AxeOS (ESP-Miner) supports the Supra 401. Pick the file built for your board, or use the web flasher.
Which settings do I enter for DirectPool?
In AxeOS Settings: Stratum Host stratum.directpool.io, Stratum Port 3333, Stratum User your bc1 address plus .worker, Password x. Save, then Restart.
How much does it cost to run?
About 120 kWh a year at 14 W, so about 25 a year at 0.20 per kWh.
Is a used Supra safe to buy?
Usually, if it hashes near 600 GH/s and the fan spins. Ask the seller for an AxeOS screenshot and check that the barrel jack is not damaged.
08

Sources

  1. D-Central: Bitaxe encyclopedia (Supra chip, efficiency, cooling)https://d-central.tech/data/bitaxe-encyclopedia, checked 2026-10-05
  2. Kryptex: Bitaxe Supra 401 device page (hashrate)https://pool.kryptex.com/device/asic/Bitaxe/supra-401, checked 2026-10-05
  3. Bitaxe Supra hardware repositoryhttps://github.com/bitaxeorg/bitaxeSupra, checked 2026-10-05
  4. ESP-Miner (AxeOS) firmware repositoryhttps://github.com/bitaxeorg/ESP-Miner, checked 2026-10-05

Related miners

Guides for this miner

Compare