Pencil drawing of the Bitaxe Gamma Hex 1300

Bitaxe miner Lottery miner Desktop In production

Bitaxe Gamma Hex 1300

Six BM1370 chips on one Bitaxe board with a colour LCD and a 12 V six-pin input. Solo Satoshi's build ships with a small all-in-one water cooler and RGB radiator fan, giving about 8.4 TH/s at around 140 W while staying near 30 dB.

Best price $450

$42.86 per TH · New · In stock at Bitcoin Merch

GammaHex 1300 Hydro, listed as 10.5 TH/s, with PSU

Reviews from Nostr ↓

Hashrate8.4 TH/s worst 250 GH/sbest 1.16 PH/s 161st best of 197 (the bar uses a log scale)
Power (stock)140 W lowest 11 Whighest 22 kW 167th highest of 199 (the bar uses a log scale)
Efficiency16.7 J/TH worst 100 J/THbest 8.9 J/TH 80th best of 195
Earns per kWh$0.091 worst $0.010best $0.171 81st best of 195
Heat output478 BTU/h worst 38 BTU/hbest 75,067 BTU/h 167th best of 199 (the bar uses a log scale)
Noise30 dB worst 76 dBbest 25 dB 4th best of 68
Price per TH$42.86 worst $539.96best $1.82 117th best of 156 (the bar uses a log scale)

Where to buy

Store Trustpilot Condition Availability Listed price In your currency Per TH Checked Link
Bitcoin Merch Ships from United States · 10.5 TH/s unit GammaHex 1300 Hydro, listed as 10.5 TH/s, with PSU TrustScore 4.4 out of 5, 1,082 reviews New In stock $450 $450 $42.86 4 Nov 2026 Visit
Solo Satoshi Ships from United States from price, range $396.99-$449.99 depending on PSU option TrustScore 4.8 out of 5, 206 reviews New Out of stock $397 $397 $47.26 4 Nov 2026 Visit

Prices as listed on each store's page on the date shown, without shipping. Prices marked excl. tax leave out VAT or sales tax, and others may too. Per TH uses the hashrate of the unit each store sells. Converted at ECB rates of 11 Nov 2026. Trustpilot scores are for the store, not the device. Each store's name opens its page, with everything it sells and its reviews.

Heat, running cost and sats

Heat per day
—
Electricity per day
—
Mining earns per day*
—
Net cost per day
—
Net cost per kWh of heat
—
Solo: chance of a block per year
—
Earns per kWh, on 3-month averages
—
Payback
—

*What a pool would pay on average at today's difficulty, block reward and bitcoin price, before pool fees. Solo miners usually earn nothing, and very rarely a whole block. A plain electric heater turns the same electricity into the same heat, so the mining income is what makes the difference.

Payback is how long the bitcoin a device earns takes to add up to its price. It leaves out electricity, which buys the heat: compare earnings per kWh with your electricity price to see whether mining alone covers it. It uses the average of the last 3 months, to 12 Nov 2026: bitcoin at $79,558, 969 EH/s on the network and 3.15 BTC a block, less a 2% pool fee, for the hours you set. It cuts the block subsidy in half at each halving, the next around Apr 2028, and otherwise assumes those carry on unchanged, which they won't. Income at today's difficulty and price is about 17% below that average. Hashrate usually rises, though miners that stop paying after a halving may switch off, which leaves more for the rest. How we work it out.

Specifications

BrandBitaxe
ModelGamma Hex 1300
SKUMNR-HEX (Solo Satoshi)
TypeLottery miner · Home
Form factorDesktop
CoolingWater (hydro)
Production statusIn production
Launch date—
Hashrate8.4 TH/s *
Power consumption (stock)140 W *
Mining efficiency16.7 J/TH *
ASIC chipBitmain BM1370 × 6 (named by the device's maker)
Heat output478 BTU/h
Input voltage12 V DC (6-pin PCIe / Molex)
Frequency—
Net dimensions (W × D × H)229 × 178 × 127 mm (9 × 7 × 5 in) *
Net weight1 kg (2.2 lb) *
Noise30 dB *
Operating temperature—
Area heatedAbout 0.9–2.8 m² (our estimate)
Colours—
Company based in—
Made in—

* Not confirmed by the maker's own documents yet.

Heat modes

ModeHashratePowerHeat
Overclocked (Solo Satoshi test)11 TH/s191 W652 BTU/h

Features

  • Six BM1370 ASICs in two domains of three
  • Open-source hardware (CERN-OHL-S) and ESP-Miner / AxeOS firmware
  • 1.9-inch colour LCD
  • 12 V DC input via 6-pin connector
  • Four-phase TPS546D24S voltage regulator with telemetry
  • Bitaxe Accessory Port
  • All-in-one liquid cooler with RGB fan (Solo Satoshi build)

Reviews

Reviews are posted on Nostr, so they belong to the people who wrote them, not to us. Sign in with a Nostr extension or signer app to add yours.

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Similar Bitaxe miners

Zyber 8S

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Hashrate
6.4 TH/s
Power
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Efficiency
22 J/TH
Noise
—
from $300 $47 per TH

Zyber 8G

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Hashrate
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Power
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Efficiency
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Noise
—
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Sources and data notes

Not yet confirmed from the maker's own documents: launch date; where the company is based; where it's made; hashrate; power; efficiency; dimensions; weight; noise; operating temperature.

Spotted a mistake? Let us know.