Bitmain Antminer S21 Imm.
- Hashrate
- 215 TH/s
- Power
- 3,440 W
- Efficiency
- 16 J/TH
- Noise
- —
Industrial Industrial (air) Rack / shelf Unknown
An improved M60 with 170–186 TH/s at 18.5 J/TH and up to about 3.4 kW at the wall. Launched in October 2023 and still widely sold, it is air cooled, runs on 220–240 V and moves about 350 CFM of air.
Best price $1,692
$9.00 per TH · New · In stock at WhatsMiner Official Store (MicroBT) Store notes
| Store | Trustpilot | Condition | Availability | Listed price | In your currency | Per TH | Checked | Link |
|---|---|---|---|---|---|---|---|---|
| WhatsMiner Official Store (MicroBT) Ships from Hong Kong SAR China · Maker's own shop · 188 TH/s unit Store notes Also stocked in the US warehouse; 186 TH/s ($1,674) and 184 TH/s ($1,656) bins listed from the US warehouse. These notes are from 4 Nov 2026. Price and stock were checked since. | No score | New | In stock | $1,692 | $1,692 | $9.00 | 12 Nov 2026 | Visit |
| MiningStore Ships from United States · 180 TH/s unit Store notes Listed as in stock; page says a custom quote is required, so the final price may differ. Condition not stated (manufacturer warranty mentioned). Estimated US shipping $150. | TrustScore 3.4 out of 5, 5 reviews | New | In stock | $1,793 | $1,793 | $9.96 | 4 Nov 2026 | Visit |
| Mineshop Ships from Ireland Shown as no longer available. Price excl. VAT. Store 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 | €1,900 excl. tax | $2,114 | $11.37 | 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 | MicroBT |
|---|---|
| Model | WhatsMiner M60S |
| SKU | — |
| Type | Industrial (air) · Industrial |
| Form factor | Rack / shelf |
| Cooling | Air |
| Production status | Unknown |
| Launch date | Oct 2023 |
| Hashrate | 186 TH/s |
| Power consumption (stock) | 3,441 W |
| Mining efficiency | 18.5 J/TH |
| ASIC chip | MicroBT chip, part number not published; KF1978 in some versions (reported) |
| Heat output | 11,741 BTU/h |
| Input voltage | 220–240 V AC |
| Frequency | — |
| Net dimensions (W × D × H) | 155 × 430 × 226 mm (6.1 × 16.9 × 8.9 in) |
| Net weight | 11.5 kg (25.4 lb) |
| Noise | — |
| Operating temperature | -5–35 °C (23–95 °F) |
| Area heated | About 23–69 m² (our estimate) |
| Colours | — |
| Company based in | China |
| Made in | — |
* Not confirmed by the maker's own documents yet.
| Version | Hashrate | Power | Efficiency |
|---|---|---|---|
| 170 TH/s (lowest bin in spec range) | 170 TH/s | 3,145 W | 18.5 J/TH |
| 186 TH/s (highest bin in spec range) | 186 TH/s | 3,441 W | 18.5 J/TH |
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Chip by version: VK10 hashboards (firmware type M60SVK10): KF1978 × 645 (reported). See the chips page.
Not yet confirmed from the maker's own documents: colours; frequency; area heated; where it's made; noise; SKU.
Spotted a mistake? Let us know.