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Bitmain Antminer S21 XP+ Hydro (395TH)

Model: Antminer S21+ Hydro

Condition: new

395 TH/s hydro-cooled SHA-256 miner with OD10 cooling technology and 50 dB operation. The most powerful hydro model in the S21 family. Includes warranty and free DDP shipping from MillionMiner.

395 TH/s 5925W SHA-256 15 J/TH

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Quantity

Total Price

$4,042.00

Genuine

Tested hardware

Worldwide

Global shipping

Support

Mining experts

Hashrate

395 TH/s

Power

5925 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
$14.06 $98.42 $421.80
Electricity
-$11.38 -$79.66 -$341.40
Profit
$2.68 $18.76 $80.40

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

Adjust rate in the bar above

Full Specifications

Hashrate 395 TH/s
Power Consumption 5925 W
Efficiency 15.00 J/TH
Algorithm SHA-256
Model Antminer S21+ Hydro
Release Year Nov 2024
Noise Level 50 dB
Dimensions 410 x 170 x 209
Weight 13.8 kg
Voltage 100-240V
Interfaces Ethernet
Operating Temp 5 - 35 °C
Humidity 5 - 90 %
Cooling Type Hydro

What's in the Box

Antminer S21+ Hydro
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

Product Details

Bitmain Antminer S21 XP+ Hydro 395TH Water-Cooled SHA-256 Bitcoin Miner for Industrial Mining

The Bitmain Antminer S21 XP+ Hydro (395 TH/s) is the top bin model at 5,925W, producing 37 TH/s more than the standard bin (358 TH/s at 5,370W) in the same compact hydro chassis. Approximately 15.0 J/TH.

This is the highest output model in Bitmain's current universal voltage hydro lineup. 395 TH/s on 100 to 240V single phase with water cooling. For facilities wanting maximum hydro hashrate without three phase infrastructure, the S21 XP+ Hydro 395 TH/s is the top option.

Top bin SEAL chips run at higher frequencies, producing more hashrate from the same chassis and cooling. The 37 TH/s advantage compounds across a fleet: 10 top bin units produce 3.95 PH/s versus 3.58 PH/s from 10 standard units. Same infrastructure, same power budget ratio, 370 TH/s more total output.

50 dB water cooled. 13.8 kg at 410 x 170 x 209mm. 100 to 240V universal. Water or water glycol closed loop. Standard plumbing. Bitmain firmware. Ethernet. 5 to 35 degrees Celsius.

Bitmain's hydro lineup spans multiple generations, but only specific models maintain universal voltage compatibility. The S21 XP+ Hydro at both bins is among the most recent to offer this capability. Newer models like the S23 Hyd require 380V+ three phase.

Bitcoin mining with liquid cooling offers several operational advantages over air cooled alternatives: more consistent chip temperatures extend component life, elimination of fan noise reduces acoustic impact, and higher thermal headroom allows sustained peak performance without throttling. The infrastructure investment in cooling systems (water lines, pumps, heat exchangers or immersion tanks) is offset by longer hardware lifespan and higher uptime percentages across the fleet.

For operators evaluating total cost of ownership across a 3 to 5 year deployment horizon, the reduced maintenance, lower failure rates, and sustained hashrate consistency of liquid cooled hardware can outperform air cooled alternatives despite higher initial infrastructure cost.

Antminer S21 XP+ Hydro 395TH Bitcoin Miner with OD10 Cooling

Top bin S21 XP+ Hydro. 395 TH/s at 5,925W. Highest output in Bitmain's universal voltage hydro lineup. Same chassis as the 358 TH/s standard bin.

37 TH/s advantage per unit. 10 top bin units produce 370 TH/s more than 10 standard units on the same infrastructure. Same 100 to 240V, same cooling, same rack positions.

50 dB at 13.8 kg. 410 x 170 x 209mm. 15.0 J/TH. Bitmain firmware. Ethernet. 5 to 35 degrees. Water glycol closed loop. Newer S23 Hyd requires 380V+ three phase. This model maintains universal voltage.

Liquid cooling extends component life through more consistent thermal management. Reduced fan count means fewer mechanical failure points per unit. Sustained peak performance without thermal throttling. Higher total uptime percentage across fleet deployments compared to air cooled equivalents.

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S21 XP+ Hydro 395TH Bitcoin Miner

Bitmain S21 XP+ Hydro 395 TH/s. Top bin. 5,925W at 15.0 J/TH. Universal 100 to 240V hydro. 50 dB. 13.8 kg at 410 x 170 x 209mm. Highest output in Bitmain universal voltage hydro lineup. Same chassis as 358 TH/s. Bitmain firmware. Ethernet. 5 to 35 degrees. Liquid cooling for extended component life, reduced maintenance, and sustained peak hashrate without thermal throttling. Bitmain manufacturer. Ethernet connectivity for pool configuration. Compare current pricing with competing models for best fleet value.

395TH Top of the S21 Family

Premium XP+ silicon and hydro cooling combine to produce the most powerful single unit in the entire S21 generation.

OD10 Cooling, 50 dB Operation

Bitmain's advanced water cooling eliminates dust, reduces maintenance, and extends hardware lifespan while running quietly.

Fewer Machines, Same Hashrate

At 395 TH/s per unit, operators need fewer devices to reach target capacity, simplifying plumbing, cabling, and farm management.

FAQ

Frequently Asked Questions

395 TH/s of SHA-256 hashrate, the highest output of any hydro-cooled model in the S21 generation.

Bitmain's OD10 is an advanced water cooling system that provides efficient heat dissipation, dust protection, and extended hardware lifespan without fans.

The S23 Hydro delivers 580 TH/s at 9.5 J/TH. The S21 XP+ Hydro delivers 395 TH/s at a lower purchase price, offering strong value depending on your capital budget.

A compatible hydro cooling loop with appropriate radiator capacity. MillionMiner supplies all necessary hydro accessories.

Approximately 50 dB. No fans, just water circulation.

20 to 50 degrees Celsius with 10 to 90 percent humidity tolerance.

Bitcoin, Bitcoin Cash, and all other SHA-256 proof-of-work cryptocurrencies.

Yes. Professional hosting with hydro infrastructure, full remote dashboard access, and transparent monthly electricity billing.

Yes. Free worldwide DDP delivery with all customs clearance, duties, and taxes included in the price.