Pencil drawing of the Bitaxe Ultra Hex (302/303)

Bitaxe miner Lottery miner Desktop In production

Bitaxe Ultra Hex (302/303)

The first multi-chip Bitaxe: six BM1366 chips on a 12 V board that runs inside a small tunnel enclosure with an 80 mm fan. Sellers rate it at about 3 TH/s for roughly 80 W. The design repository still calls it unfinished and notes a regulator issue on the newest revision.

Best price $138

$46.13 per TH · New · In stock at TinyChipHub

Bitaxe Hex (6x BM1366) with TinyChipHub acrylic stand and dual fans, 12 V 10 A PSU included; GBP price shown to a UK visitor

Reviews from Nostr ↓

Hashrate3 TH/s worst 250 GH/sbest 1.16 PH/s 174th best of 197 (the bar uses a log scale)
Power (stock)80 W lowest 11 Whighest 22 kW 175th highest of 199 (the bar uses a log scale)
Efficiency27 J/TH worst 100 J/THbest 8.9 J/TH 159th best of 195
Earns per kWh$0.057 worst $0.010best $0.171 159th best of 195
Heat output273 BTU/h worst 38 BTU/hbest 75,067 BTU/h 175th best of 199 (the bar uses a log scale)
Noise—
Price per TH$46.13 worst $539.96best $1.82 123rd 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
TinyChipHub Bitaxe Hex (6x BM1366) with TinyChipHub acrylic stand and dual fans, 12 V 10 A PSU included; GBP price shown to a UK visitor TrustScore 3.5 out of 5, 4 reviews New In stock £104 $138 $46.13 4 Nov 2026 Visit
Bitcoin Merch Ships from United States with clear case; sale, regular $399.99; ships in 3-4 weeks TrustScore 4.4 out of 5, 1,082 reviews New In stock $200 $200 $66.66 4 Nov 2026 Visit
D-Central Ships from Canada Store notes combined Hex Ultra / Hex Supra listing; from price, range CAD 389.99-479.99; lead time 2 weeks These notes are from 4 Nov 2026. Price and stock were checked since. No score New In stock CA$390 $274 $91.32 12 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
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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
ModelUltra Hex (302/303)
SKU—
TypeLottery miner · Home
Form factorDesktop
CoolingAir
Production statusIn production
Launch date—
Hashrate3 TH/s *
Power consumption (stock)80 W *
Mining efficiency27 J/TH *
ASIC chipBitmain BM1366 × 6 (named by the device's maker)
Heat output273 BTU/h
Input voltage12 V DC (screw terminals; XT30 on some builds)
Frequency—
Net dimensions (W × D × H)—
Net weight—
Noise—
Operating temperature—
Area heatedAbout 0.5–1.6 m² (our estimate)
Colours—
Company based in—
Made in—

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

Features

  • Six Bitmain BM1366 ASICs
  • Open-source hardware; multichip ESP-Miner firmware
  • ESP32-S3 with 2.4 GHz Wi-Fi
  • 12 V DC input via screw terminals (100 W supply recommended)
  • Dual-fan controller and inlet/outlet temperature sensors
  • Header for an optional status display

Reviews

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Similar Bitaxe miners

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.