Pencil drawing of the Bitaxe Supra Hex 701

Bitaxe miner Lottery miner Desktop In production

Bitaxe Supra Hex 701

TinyChipHub's follow-on to the Ultra Hex, with six BM1368 chips from the Antminer S21 on a 12 V board. The design notes say revision 701 hashes at about 4–4.2 TH/s and draws around 75 W, cooled by a heatsink and 80 mm fan inside a tunnel case.

Best price $188

$44.67 per TH · New · In stock at TinyChipHub

sold by the Supra Hex designer, 12 V 10 A PSU included; batch restocking, ships by 12 Nov; GBP price shown to a UK visitor

Reviews from Nostr ↓

Hashrate4.2 TH/s worst 250 GH/sbest 1.16 PH/s 170th best of 197 (the bar uses a log scale)
Power (stock)75 W lowest 11 Whighest 22 kW 177th highest of 199 (the bar uses a log scale)
Efficiency17.9 J/TH worst 100 J/THbest 8.9 J/TH 98th best of 195
Earns per kWh$0.085 worst $0.010best $0.171 95th best of 195
Heat output256 BTU/h worst 38 BTU/hbest 75,067 BTU/h 177th best of 199 (the bar uses a log scale)
Noise—
Price per TH$44.67 worst $539.96best $1.82 121st 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 Maker's own shop sold by the Supra Hex designer, 12 V 10 A PSU included; batch restocking, ships by 12 Nov; GBP price shown to a UK visitor TrustScore 3.5 out of 5, 4 reviews New In stock £141 $188 $44.67 4 Nov 2026 Visit
Bitcoin Merch Ships from United States TrustScore 4.4 out of 5, 1,082 reviews New In stock $225 $225 $53.57 4 Nov 2026 Visit
Mining Wholesale Ships from Netherlands Ships out in 3-7 working days. Sold as "Supra Hex", without the Bitaxe name. The store says a PSU is included. Price excl. VAT. TrustScore 4.7 out of 5, 401 reviews New In stock €259 excl. tax $288 $68.62 10 Nov 2026 Visit
D-Central Ships from Canada Store notes combined Hex listing; "Bitaxe Hex Supra 4+ TH/s" variant CAD 479.99 (CAD 389.99 is the Hex Ultra variant); lead time 2 weeks These notes are from 4 Nov 2026. Price and stock were checked since. No score New In stock CA$480 $337 $80.28 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
—
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
ModelSupra Hex 701
SKU—
TypeLottery miner · Home
Form factorDesktop
CoolingAir
Production statusIn production
Launch date—
Hashrate4.2 TH/s
Power consumption (stock)75 W
Mining efficiency17.9 J/TH
ASIC chipBitmain BM1368 × 6 (named by the device's maker)
Heat output256 BTU/h
Input voltage12 V DC
Frequency—
Net dimensions (W × D × H)—
Net weight—
Noise—
Operating temperature—
Area heatedAbout 0.5–1.5 m² (our estimate)
Colours—
Company based in—
Made in—

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

Features

  • Six Bitmain BM1368 ASICs
  • Open-source hardware (TinyChipHub) and AxeOS-based firmware
  • ESP32-S3 with 2.4 GHz Wi-Fi
  • 12 V DC input (100 W supply recommended)
  • Per-chip temperature readings and Bitaxe Accessory Port
  • Header for an optional status display

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

Sources and data notes

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

Spotted a mistake? Let us know.