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Bitmain Antminer S21+ Hydro 395T – hydro-cooled Bitcoin ASIC miner
Bitmain Antminer S21+ Hydro 395T – hydro-cooled Bitcoin ASIC miner

Picture of the model. The unit you receive may differ in appearance.

AvailableCondition: NewBitmain

Bitmain Antminer S21+ Hydro 395 TH/s Bitcoin Miner

The Antminer S21+ Hydro 395T is a hydro-cooled Bitcoin miner from Bitmain, rated at 395 TH/s and 4,785 W (12.1 J/TH).

Hashrate
395TH/s
Power
4,785W
Efficiency
12.1J/TH
derived: power ÷ hashrate
Cooling
Hydro-cooled
Coins
BTC

Versions of this model

Retail price

$2,374.05

per unit · $6.01 per TH/s

  • 1–4 units$2,374.05
  • 5+ unitsVolume pricing available
View volume pricing
1–4 units$2,374.05
5–19 unitsVolume pricing on request
20–99 unitsRequest Quote
100+ unitsContact Mining Sales
Ships in
5–10 business days
$2,374.05Free standard shipping. Excludes duties and taxes
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Manufacturer
Bitmain
Model
Antminer S21+ Hydro 395T
Algorithm
SHA-256
Condition
New
Running it at $0.06/kWh · estimateMining economicsEst. revenue / day$14.02Electricity / day$6.89Operating result / day$7.13

Product overview

The Antminer S21+ Hydro 395T is a hydro-cooled Bitcoin miner from Bitmain, rated at 395 TH/s and 4,785 W (12.1 J/TH).

Condition: New.

  • 395 TH/s

    Rated hashrate

  • 12.1 J/TH

    Efficiency (power ÷ hashrate)

  • Hydro-cooled

    Cooling method

  • 4,785 W

    Power draw at the wall

Technical specifications

Fields that are not stated are left out rather than estimated.

Performance

Hashrate395 TH/s
Power consumption4,785 W
Efficiency12.1 J/TH (derived from power ÷ hashrate)
AlgorithmSHA-256
Supported coinsBTC

Cooling

Cooling typeHydro-cooled

As stated by the source

Voltage380-415V
Noise50db
Net weight13800g
Dimensions339 X 173 X 207mm
InterfaceEthernet
Operating temperature20 – 50 °C

Mining economics

Estimate output and operating cost for the Antminer S21+ Hydro 395T at your own power price. Results are calculations from the inputs shown, not a forecast.

Electricity price (USD per kWh)
units
%
%
Network difficulty, Bitcoin price and hosting
USD
$/kWh

Added to the electricity price.

Open the full calculator

Estimated results (per miner, at $0.06/kWh)

Est. revenue / day
$14.02
0.00017389 BTC mined / day
Electricity cost / day
$6.89
114.8 kWh × $0.06
Operating result / day
$7.13
Revenue less electricity
Revenue / 30 days
$420.67
Electricity / 30 days
$206.71
Operating result / 30 days
$213.96
Energy / day
114.8 kWh
Energy / 30 days
3,445 kWh
Break-even electricity
$0.122/kWh

Estimates only. Not financial advice. Results vary with network difficulty, pool fees, uptime, market conditions, the Bitcoin price and the cost of electricity. They are calculated from the inputs shown at constant difficulty and price, and leave out the cost of the hardware, cooling, downtime, taxes and depreciation.

Network data as of 2026-10-28 13:00 UTC · price: mempool.space · difficulty: mempool.space · block reward 3.1391 BTC

Electricity cost by power price

Daily and 30-day electricity cost of Antminer S21+ Hydro 395T at 4,785 W, with the estimated revenue beside it.

Electricity priceElectricity / dayElectricity / 30 daysEst. revenue / dayEst. net / day
$0.03/kWh$3.45$103.36$14.02$10.58
$0.05/kWh$5.74$172.26$14.02$8.28
$0.06/kWhselected$6.89$206.71$14.02$7.13
$0.07/kWh$8.04$241.16$14.02$5.98
$0.10/kWh$11.48$344.52$14.02$2.54
$0.12/kWh$13.78$413.42$14.02$0.24
$0.15/kWh$17.23$516.78$14.02-$3.20
$0.20/kWh$22.97$689.04$14.02-$8.95

Compare miners

How the Antminer S21+ Hydro 395T compares with the closest alternatives by cooling type and efficiency.

Compare all miners
ModelHashratePowerEfficiencyCoolingPrice$/THSide by side
Antminer S21+ Hydro 395T (this miner)395 TH/s4,785 W12.1 J/THHydro-cooled$2,374.05$6.01
SealMiner A3 Pro 660T660 TH/s8,250 W12.5 J/THHydro-cooled$9,024.05$13.67Side by side
Whatsminer M73S 550T550 TH/s7,200 W13.1 J/THHydro-cooled$6,354.55$11.55Side by side
Whatsminer M7DS 696T696 TH/s9,200 W13.2 J/THHydro-cooled$7,219.05$10.37Side by side
SealMiner A3 500T500 TH/s6,750 W13.5 J/THHydro-cooled$6,411.55$12.82Side by side

Shipping

Standard shipping is free to every destination we ship to. If you need it faster, choose express shipping at checkout and we quote it before you pay. Import duties, taxes and customs clearance are set by the destination country and are the importer's responsibility unless your quotation states otherwise.

Request Express QuoteShipping policy

Antminer S21+ Hydro 395T questions

How much electricity does the Antminer S21+ Hydro 395T use?

The Antminer S21+ Hydro 395T draws 4,785 W at the wall. Running continuously that is about 114.8 kWh per day and 3,445 kWh per 30 days. Multiply by your electricity price to get the running cost, or use the calculator.

What is the hashrate and efficiency of the Antminer S21+ Hydro 395T?

Rated hashrate is 395 TH/s at 12.1 J/TH (derived from rated power ÷ rated hashrate). Lower J/TH means less energy per unit of hashrate. See Understanding J/TH.

How is the Antminer S21+ Hydro 395T cooled?

The Antminer S21+ Hydro 395T is hydro-cooled: heat is removed by liquid circulating through cold plates, so it needs an external cooling loop (pump, heat exchanger or dry cooler) and cannot run on fans alone. Compare options in Air vs hydro Bitcoin miners.

Can I order the Antminer S21+ Hydro 395T in bulk?

Yes. Orders are handled by quantity: small quantities through checkout when a price is published, and larger quantities by quotation with pricing, batch and logistics confirmed by sales. Request a wholesale quote.

Similar miners

The closest alternatives by cooling type and efficiency.

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Wholesale & project supply

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Antminer S21+ Hydro 395T

$2,374.05

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