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Bitmain

Bitmain Antminer S21+ Hyd (319TH)

Model: Antminer S21+ Hyd

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319 TH/s hydro cooled SHA-256 miner at 4,785W. 15.0 J/TH, 100 to 240V. Bitmain's efficient S21+ hydro Bitcoin miner. Ships from MillionMiner with warranty.

319 TH/s 4785W SHA-256 15 J/TH

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Quantity

Total Price

$3,137.00

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Pay with: Bank Transfer | BTC | ETH | USDT

Genuine

Tested hardware

Worldwide

Global shipping

Support

Mining experts

Hashrate

319 TH/s

Power

4785 W

Efficiency

15.00 J/TH

Noise

50 dB

Estimated Mining Returns

Based on current BTC price & network difficulty. Indicative only.

Period Daily Weekly Monthly
Income
$10.87 $76.09 $326.10
Electricity
-$9.19 -$64.33 -$275.70
Profit
$1.69 $11.83 $50.70

Using 0.080 $/kWh · Network difficulty as of today. Estimates only.

Adjust rate in the bar above

Updated daily. Last refresh: Apr 19, 2026. Estimates at $0.08/kWh.

Full Specifications

Hashrate 319 TH/s
Power Consumption 4785 W
Efficiency 15.00 J/TH
Algorithm SHA-256
Model Antminer S21+ Hyd
Release Year Feb 2025
Noise Level 50 dB
Dimensions 410 x 170 x 209mm
Weight 13.5 kg
Voltage 100-240V
Interfaces Ethernet
Operating Temp 5 - 40 °C
Humidity 10 - 90 %
Cooling Type Hydro

What's in the Box

Antminer S21+ Hyd
Power supply unit (PSU)
Power cables
Quick start guide

Contents may vary by batch. Exact items listed in order confirmation.

Quick Setup

1

Connect PSU to miner and plug into the outlet

2

Connect ethernet cable to your router or switch

3

Find miner IP via router admin or IP scanner tool

4

Open web interface, enter pool URL and wallet — start mining

Hydro-cooled miners require 380-415V three-phase power and a hydro cooling loop. Standard household outlets are not compatible. Contact our team for hosting options or setup guidance.

Product Details

Bitmain Antminer S21+ Hyd 319TH Efficient Hydro Cooled SHA-256 Bitcoin Miner

The Bitmain Antminer S21+ Hyd solves a specific infrastructure problem: hydro Bitcoin mining on standard single phase power. At 319 TH/s and 4,785W on 100 to 240V, it runs on the same electrical service available in virtually any building worldwide.

This matters because three phase power is expensive to install. Depending on your utility and facility, upgrading from single phase to three phase costs $10,000 to $50,000+. The newer S23 Hyd at 580 TH/s and 9.5 J/TH is dramatically more powerful and efficient, but it requires 380 to 415V three phase. For facilities that have invested in water cooling infrastructure (pumps, pipes, heat exchangers) but only have single phase electrical, the S21+ Hyd may be the only viable Bitmain hydro option.

The S21 XP+ Hydro (358 and 395 TH/s) is similar but from a slightly different generation. The S19 XP+ Hyd 3U (586 TH/s at 10,900W) also runs on universal voltage but in a much larger, heavier 3U chassis at 50 kg. The S21+ Hyd at 13.5 kg in a compact chassis is the most manageable universal voltage hydro unit in Bitmain's current and recent lineup.

15.0 J/TH efficiency. 50 dB water cooled, 25 dB below air cooled alternatives. Water or water glycol closed loop. Standard plumbing. No dielectric fluid.

410 x 170 x 209mm at 13.5 kg. Ethernet connectivity. Bitmain Antminer firmware ecosystem. 5 to 40 degrees Celsius at 5 to 95 percent humidity. Bitcoin, Bitcoin Cash, all SHA 256 coins.

As Bitmain moves to three phase on newer hydro models, the universal voltage models from the S21 generation represent a closing window. Once inventory depletes, no current Bitmain hydro miner runs on single phase.

Antminer S21+ Hyd 319TH Efficient Hydro Bitcoin Miner

Bitmain S21+ Hyd. 319 TH/s SHA 256 hydro at 4,785W on universal 100 to 240V. Solves the infrastructure gap: water cooling without three phase power.

Three phase upgrades cost $10,000 to $50,000+. The S21+ Hyd avoids this entirely. S23 Hyd (580 TH/s, 9.5 J/TH) is more powerful but requires 380V+ three phase. For single phase facilities with water cooling capability, the S21+ Hyd may be irreplaceable.

13.5 kg at 410 x 170 x 209mm. 50 dB. 15.0 J/TH. Bitmain firmware. Closing window as Bitmain moves newer hydro to three phase only. Once S21 generation inventory depletes, no current Bitmain hydro runs on single phase. Ethernet. 5 to 40 degrees Celsius.

The S21+ Hyd represents a specific moment in Bitmain product history. Universal voltage hydro may not return in future Bitmain generations. For operators who need this exact specification set (water cooled, single phase, Bitmain firmware), purchasing while inventory exists may be a now or never decision.

Bitmain firmware supports third party optimization tools. Well tested fleet management integration from years of Antminer ecosystem deployment. Proven stability.

Need Help Choosing?

Our mining specialists can help you find the perfect miner for your setup and budget.

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Antminer S21+ Hyd 319TH BTC Miner

Moderate noise SHA-256 at 319 TH/s from Bitmain. 319 TH/s hydro at 4,785W on 100 to 240V. Universal voltage hydro. No three phase needed. 50 dB. 13.5 kg at 410 x 170 x 209mm. 15.0 J/TH. Closing window on single phase Bitmain hydro. S23 Hyd requires 380V+. Ethernet. Bitmain firmware. May be a now or never purchase for single phase Bitmain hydro. Inventory limited. Bitmain firmware with third party optimization support. Proven fleet integration.

319 TH/s at 15.0 J/TH

Strong efficiency in Bitmain's hydro lineup. Excellent cost per hash economics for power conscious operations.

100 to 240V Flexibility

Unusually broad voltage range for a hydro miner. Deploy with standard single phase power infrastructure.

Free DDP Worldwide

Ships from MillionMiner with full Bitmain warranty and free DDP delivery.

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FAQ

Frequently Asked Questions

319 TH/s of SHA-256 at 4,785W with hydro (liquid) cooling. Efficiency of 15 J/TH. Specifically designed for single-phase power infrastructure — solving a key deployment barrier for hydro mining.

It runs on standard single-phase power (200-240V) unlike many hydro miners requiring three-phase. This means you can deploy water-cooled mining performance without industrial electrical infrastructure upgrades.

The S23 Hydro delivers 580 TH/s at 9.5 J/TH — significantly more hashrate and better efficiency. However, the S23 Hydro may require different power infrastructure. The S21+ Hyd is the pragmatic choice for facilities with single-phase power.

Hydro miners require a liquid cooling loop: radiators, pumps, coolant, and connecting hoses. This adds upfront infrastructure cost but enables quieter operation (~50 dB vs 75 dB air-cooled) and better thermal management for chip longevity.

Profitability varies with Bitcoin price and network difficulty. Use the live profitability calculator on this product page to check current daily earnings at your electricity rate. The S21+ Hyd 15 J/TH efficiency keeps it competitive. MillionMiner offers hosting from $0.055/kWh to maximize margins.

All SHA-256 coins: Bitcoin (BTC), Bitcoin Cash (BCH), BSV, eCash, and others.

Yes. MillionMiner professional hosting facilities support both air-cooled and hydro-cooled ASIC miners from $0.055/kWh.

Bitmain manufacturer warranty included. MillionMiner ships genuine Bitmain hardware with free worldwide DDP shipping.

The hydro version delivers 319 TH/s vs 235 TH/s air-cooled — 36% more hashrate. Hydro cooling enables higher chip clock speeds and better thermal management. The air-cooled S21+ is simpler to deploy with no cooling infrastructure needed.

Approximately 50 dB with hydro cooling — significantly quieter than air-cooled miners at 75 dB. The noise reduction alone justifies the hydro premium for noise-sensitive environments.