Bitmain Antminer S21
- Hashrate
- 200 TH/s
- Power
- 3,500 W
- Efficiency
- 17.5 J/TH
- Noise
- 76 dB
Industrial Industrial (air) Rack / shelf Unknown
Canaan's A14-generation air-cooled miner, unveiled in September 2023. Canaan lists 150 and 162 TH/s bins on a 3,500 W supply (23.3 J/TH on its shop; 21.5 J/TH at launch). Canaan's own listings are off sale and some resellers still carry it.
Best price $3,338
$22.25 per TH · New · Out of stock at Mineshop · excl. tax
| Store | Trustpilot | Condition | Availability | Listed price | In your currency | Per TH | Checked | Link |
|---|---|---|---|---|---|---|---|---|
| Mineshop "Notify When Available"; listed SKU A1446-150T, spec 150 TH/s at 3,225 W (21.5 J/TH). 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 | €3,000 excl. tax | $3,338 | $22.25 | 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.
The maker gives no hashrate for this mode, so we can't work out its mining income.
*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.
| Brand | Canaan |
|---|---|
| Model | Avalon A1466 |
| SKU | — |
| Type | Industrial (air) · Industrial |
| Form factor | Rack / shelf |
| Cooling | Air |
| Production status | Unknown * |
| Launch date | Sep 2023 |
| Hashrate | 150 TH/s |
| Power consumption (stock) | 3,500 W |
| Mining efficiency | 23 J/TH |
| ASIC chip | Canaan A3198S × 528 (named by the device's maker) |
| Heat output | 11,942 BTU/h |
| Input voltage | 200–300 V AC |
| Frequency | — |
| Net dimensions (W × D × H) | 192 × 271 × 292 mm (7.6 × 10.7 × 11.5 in) |
| Net weight | 13 kg (28.7 lb) |
| Noise | — |
| Operating temperature | -5–35 °C (23–95 °F) |
| Area heated | About 23–70 m² (our estimate) |
| Colours | — |
| Company based in | Singapore |
| Made in | — |
* Not confirmed by the maker's own documents yet.
| Version | Hashrate | Power | Efficiency |
|---|---|---|---|
| 150 TH bin | 150 TH/s | 3,500 W | 23 J/TH |
| 162 TH bin | 162 TH/s | 3,500 W | 23 J/TH |
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Not yet confirmed from the maker's own documents: SKU; production status; frequency; noise; where it's made; colours; heat modes.
Spotted a mistake? Let us know.