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Bitmain Antminer S21 XP+ Hydro (358TH)

Model: Antminer S21+ Hydro

358 TH/s 5370W SHA-256 15 J/TH

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Quantity

Total Price

$3,850.00

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Pay with: Bank Transfer | BTC | ETH | USDT

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Tested hardware

Worldwide

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Support

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Hashrate

358 TH/s

Power

5370 W

Efficiency

15.00 J/TH

Noise

50 dB

358 TH/s hydro cooled SHA-256 at 5,370W. 15.0 J/TH, 100 to 240V. Bitmain S21+ Hydro top tier. Ships from MillionMiner with warranty.

Estimated Mining Returns

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

Period Daily Weekly Monthly
Income
$14.90 $104.30 $447.00
Electricity
-$6.44 -$45.08 -$193.20
Profit
$8.46 $59.22 $253.80

Using 0.050 $/kWh · Network difficulty as of today. Estimates only.

Adjust rate in the bar above

Updated daily. Last refresh: Jul 18, 2026. Estimates at $0.08/kWh.

At a Glance Live data · July 18, 2026
Best for

Industrial-scale hydro deployments where efficiency and density beat upfront cost.

Daily profit by electricity rate
Your rate · $0.050/kWh
+$8.46 /day
ROI ~15 months
Hosted · $0.040/kWh
+$9.74 /day
ROI ~13 months
Avg US grid · $0.070/kWh
+$5.88 /day
ROI ~22 months
Home power · $0.120/kWh
−$0.57 /day
Unprofitable at this rate
Breakeven rate Profitable below $0.116/kWh
Efficiency rank #37 of 141 SHA-256 miners in our catalog (15 J/TH)
Availability In stock · ships in 5–7 days · DDP worldwide
Hosting compatibility ✓ Mississippi (hydro) ✓ Missouri (hydro)
Hardware specs
Hashrate 358 TH/s
Power 5,370 W
Efficiency 15 J/TH
Noise 50 dB
Weight 13.8 kg
Cooling Hydro
Buy now — from $3,850 Get hosting quote

Full Specifications

Hashrate 358 TH/s
Power Consumption 5370 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

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.

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Product Details

Bitmain Antminer S21 XP+ Hydro 358TH Premium Hydro Cooled SHA-256 Bitcoin Miner

The Bitmain Antminer S21 XP+ Hydro (358 TH/s) produces 358 TH/s at 5,370W at approximately 15.0 J/TH in a compact hydro chassis. Universal 100 to 240V single phase input. This is the standard bin model. The top bin S21 XP+ Hydro produces 395 TH/s at 5,925W in the same chassis. Both share the rare universal voltage hydro advantage. 100 to 240V on a hydro miner continues to be one of the most valuable specifications in the mining hardware market. Three phase electrical upgrades cost $10,000 to $50,000+ for many facilities. The S21 XP+ Hydro avoids that investment entirely. 50 dB water cooled at 13.8 kg. 410 x 170 x 209mm compact chassis. Water or water glycol closed loop. Standard plumbing. Bitmain Antminer firmware. Ethernet. 5 to 35 degrees Celsius (lower maximum than some models at 45 degrees). Climate controlled environments recommended. Bitmain's universal voltage hydro lineage: S19 Pro Hyd, S19 XP Hyd, S21 XP+ Hyd. Each generation improves efficiency while maintaining the single phase advantage. Bitcoin, Bitcoin Cash, all SHA 256. 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 358TH Top Tier Hydro Bitcoin Miner

Bitmain S21 XP+ Hydro 358 TH/s. Standard bin at 5,370W and 15.0 J/TH. Universal 100 to 240V hydro. Top bin is 395 TH/s in the same chassis. Universal voltage hydro avoids $10,000 to $50,000+ three phase upgrade costs. One of the most valuable specs in mining hardware for single phase facilities. 50 dB at 13.8 kg. 410 x 170 x 209mm. Bitmain firmware. 5 to 35 degrees. Water glycol closed loop. Ethernet. Bitcoin, Bitcoin Cash, all SHA 256. 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. Liquid cooled hardware requires infrastructure planning: water lines, pumps, heat exchangers or tanks. The investment pays back through higher uptime, longer component life, and sustained hashrate consistency. Budget for both hardware acquisition and cooling infrastructure in total cost of ownership calculations.

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Antminer S21 XP+ Hydro 358TH BTC Miner

Moderate noise SHA-256 at 358 TH/s from Bitmain. Standard bin. 5,370W at 15.0 J/TH. Universal 100 to 240V hydro. 50 dB. 13.8 kg at 410 x 170 x 209mm. Single phase hydro. No three phase needed. 395 TH/s top bin also available. 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.

358 TH/s Top S21 Hydro

Highest hashrate non rack S21 Hydro model. XP+ tier for maximum output at 15.0 J/TH efficiency.

Universal 100 to 240V

Broad voltage compatibility in a hydro miner. More deployment flexibility than 380V only competitors.

Free DDP Worldwide

Ships from MillionMiner with Bitmain warranty and free DDP delivery.

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FAQ

Frequently Asked Questions

358 TH/s SHA-256 at 5,370W hydro. 15 J/TH.

Yes. From $0.055/kWh. Free DDP shipping.