NerdOctaxe or two NerdQAxe++?

Similar total hashrate. The NerdOctaxe is one device and one supply; two NerdQAxe++ cost about the same, are a bit quieter each and keep half your hashrate if one fails.

What power supply does the NerdOctaxe need?

A 12 V DC supply with an XT60 connector, rated for about 200 W or more. Check whether your seller includes one.

Which settings do I enter for DirectPool?

In the dashboard settings: Stratum Host stratum.directpool.io, Stratum Port 3333, Stratum User your bc1 address plus .worker, Password x. Save, then Restart.

How much electricity does it use?

About 1,500 kWh a year at 170 W, so about 300 a year at 0.20 per kWh.

A little. 170 W of heat is noticeable in a small room in winter, but much less than a normal 1,500 W heater.

Multi-chip open miners

NerdOctaxe Gamma

by NerdQAxe (open source, by shufps), 8x BM1370, open source hardware

The NerdOctaxe Gamma is an open-source miner with eight Bitmain BM1370 chips under two tower heatsinks. It hashes about 9.6 TH/s at stock, up to about 12 TH/s tuned, for 160 to 200 W. It needs a 12 V supply with an XT60 plug and is set up in an AxeOS-style browser dashboard.

Published October 5, 2026. Updated October 5, 2026

Parts of the NerdOctaxe Gamma, numbered as in the drawing
Item	Part	From the specs
1	Hashing chips	8x Bitmain BM1370
2	Cooling	Two Thermalright AXP90 heatsinks with fans. Around 45 dB
3	Board	WiFi, 2.4 GHz
4	Screen	Shows the miner status
5	Power input	12 V DC through an XT60 connector, about 200 W or more

Key figures

Hashrate: 9.6 TH/s
Power: 170 W
Efficiency: 17.7 J/TH
Price range: $500 to $850

Availability: sold new.

Specifications

Hashrate: About 9.6 TH/s stock, up to about 12 TH/s tuned
Power draw: 160 to 200 W
Efficiency: About 16 to 17 J/TH
Chip: 8x Bitmain BM1370
Cooling and noise: Two Thermalright AXP90 heatsinks with fans. Around 45 dB
Connectivity: WiFi, 2.4 GHz
Power supply: 12 V DC through an XT60 connector, about 200 W or more
Size and weight: Desktop board with two tower coolers, no enclosure
Open source: Yes: hardware and firmware
Release year: 2025
Firmware: NerdQAxe firmware (AxeOS fork)

Good and less good

Good

About two NerdQAxe++ units of hashrate in one board.
Efficient for a small open miner, around 16 to 17 J/TH.
Open hardware and firmware with an active community.

Less good

Loud (around 45 dB) and gives off about as much heat as a small space heater on low.
About 1,500 kWh a year: the electricity bill matters at this size.
Bare board with tall coolers, so it needs a safe spot away from kids, pets and dust.
Even at 10 TH/s, a solo block is unlikely. Pool shares are the realistic outcome.

Set it up on DirectPool

The NerdOctaxe runs the same AxeOS-based firmware family as the NerdQAxe++. You configure it from the web dashboard at the IP address shown on its screen.

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.Power the miner on. On first boot it opens its own WiFi hotspot called named after the device. Join it from your phone or laptop.
2.A setup page should open by itself. If not, go to http://192.168.4.1 in a browser.
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.Type that IP address into a browser on the same network to open AxeOS, then open Settings (on newer versions, the Pool tab).
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.
Using an undersized 12 V supply. Eight chips at full load pull around 200 W through the XT60 plug.
Placing it where hot air builds up. Give it open space, ideally in a ventilated room or garage.

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.

Your odds with this miner

Miner9.6 TH/s

Network difficulty: Loading
DirectPool, 1 h avg: Loading
Next block value: Loading

Chance of finding at least one block, with 9.6 TH/s

	Solo	With DirectPool
Per day
Per month
Per year

If DirectPool finds a block, this miner would get about

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

Electricity cost

Running all year at about 170 W, the NerdOctaxe Gamma uses about 1,490 kWh a year.

Price per kWh	Per year	Per month
0.10	149	12
0.20	298	25
0.30	447	37

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

Where to buy

D-Central Technologies (NerdOctaxe Gamma)Ships to: Canada, ships worldwide
NerdMiner Store (NerdOctaxe)Ships to: Worldwide

Typical price $500 to $850, checked October 5, 2026. Prices move, check the store. Plain store links. We earn nothing from them.

Questions

NerdOctaxe or two NerdQAxe++?: Similar total hashrate. The NerdOctaxe is one device and one supply; two NerdQAxe++ cost about the same, are a bit quieter each and keep half your hashrate if one fails.
What power supply does the NerdOctaxe need?: A 12 V DC supply with an XT60 connector, rated for about 200 W or more. Check whether your seller includes one.
Which settings do I enter for DirectPool?: In the dashboard settings: Stratum Host stratum.directpool.io, Stratum Port 3333, Stratum User your bc1 address plus .worker, Password x. Save, then Restart.
How much electricity does it use?: About 1,500 kWh a year at 170 W, so about 300 a year at 0.20 per kWh.
Can it heat a room?: A little. 170 W of heat is noticeable in a small room in winter, but much less than a normal 1,500 W heater.