Pencil drawing of the Bitdeer SEALMINER A2

Industrial Industrial (air) Rack / shelf Unknown

Bitdeer SEALMINER A2

Bitdeer's first widely sold air-cooled miner, built on its own chips; launched in October 2024 with deliveries from early 2025. Bitdeer rates it at about 226 TH/s and 3,729 W (16.5 J/TH), with low-power and high-performance modes. Sold out at Bitdeer.

Best price $2,893

$12.80 per TH · New · In stock at MiningStore Store notes

Reviews from Nostr ↓

Hashrate226 TH/s worst 250 GH/sbest 1.16 PH/s 86th best of 197 (the bar uses a log scale)
Power (stock)3,729 W lowest 11 Whighest 22 kW 91st highest of 199 (the bar uses a log scale)
Efficiency16.5 J/TH worst 100 J/THbest 8.9 J/TH 75th best of 195
Earns per kWh$0.092 worst $0.010best $0.171 75th best of 195
Heat output12,724 BTU/h worst 38 BTU/hbest 75,067 BTU/h 91st best of 199 (the bar uses a log scale)
Noise—
Price per TH$12.80 worst $539.96best $1.82 71st 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
MiningStore Ships from United States Store notes Shown as in stock with online checkout. Estimated US shipping $150. TrustScore 3.4 out of 5, 5 reviews New In stock $2,893 $2,893 $12.80 4 Nov 2026 Visit
Bitdeer Official Store Maker's own shop Store notes Sold out. Bitdeer says prices exclude shipping, customs duties and other taxes. TrustScore 2.0 out of 5, 17 reviews New Out of stock $2,893 excl. tax $2,893 $12.80 4 Nov 2026 Visit
Mineshop "As low as" price; page only offers "Notify When Available". Price excludes VAT. Mineshop says most orders ship from Ireland and Latvia. These notes are from 4 Nov 2026. Price and stock were checked since. TrustScore 4.7 out of 5, 1,610 reviews New Out of stock €3,300 excl. tax $3,672 $16.25 12 Nov 2026 Visit
Altair Technology Ships from United States Out of stock; stock en route from Hong Kong to St. Louis. Altair says the price includes all US tariffs and import duties for US buyers; the description says brand new in box although the attribute table says "Used". These notes are from 4 Nov 2026. Price and stock were checked since. TrustScore 4.7 out of 5, 623 reviews New Out of stock $3,849 $3,849 $17.03 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

BrandBitdeer
ModelSEALMINER A2
SKU—
TypeIndustrial (air) · Industrial
Form factorRack / shelf
CoolingAir
Production statusUnknown *
Launch dateOct 2024
Hashrate226 TH/s
Power consumption (stock)3,729 W
Mining efficiency16.5 J/TH
ASIC chipBitdeer SEAL02 (named by the device's maker)
Heat output12,724 BTU/h
Input voltage220–277 V AC
Frequency47–63 Hz
Net dimensions (W × D × H)197 × 365 × 292 mm (7.8 × 14.4 × 11.5 in)
Net weight15.5 kg (34.2 lb)
Noise—
Operating temperature-20–50 °C (-4–122 °F)
Area heatedAbout 25–75 m² (our estimate)
Colours—
Company based inSingapore
Made in—

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

Heat modes

ModeHashratePowerHeat
Low power185 TH/s——
Normal230 TH/s——
High performance241 TH/s——

Features

  • Air cooled
  • Three power modes (low, normal, high performance)
  • Bitdeer SEAL02-generation chip (per Bitdeer roadmap)
  • PA45-4P-S power connector
  • RJ45 Ethernet

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.

  1. Loading reviews from Nostr relays…

Similar industrial miners

Sources and data notes

Not yet confirmed from the maker's own documents: production status; noise; where it's made; colours.

Spotted a mistake? Let us know.