$/kWh
Bitmain
Model: Antminer S21+ Hydro
Select Availability
Quantity
$3,850.00
Buying 10 or more? Get custom bulk pricing
Genuine
Tested hardware
Worldwide
Global shipping
Support
Mining experts
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.
Based on current BTC price & network difficulty. Indicative only.
| Period | Daily | Weekly | Monthly |
|---|---|---|---|
|
Income
|
$12.80 | $89.60 | $384.00 |
|
Electricity
|
-$6.44 | -$45.08 | -$193.20 |
|
Profit
|
$6.35 | $44.45 | $190.50 |
Using 0.050 $/kWh · Network difficulty as of today. Estimates only.
Adjust rate in the bar aboveUpdated daily. Last refresh: Jul 10, 2026. Estimates at $0.08/kWh.
Industrial-scale hydro deployments where efficiency and density beat upfront cost.
Contents may vary by batch. Exact items listed in order confirmation.
Connect PSU to miner and plug into the outlet
Connect ethernet cable to your router or switch
Find miner IP via router admin or IP scanner tool
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.
Free quote, reply in 24h. No sales call.
4.7 / 5 on Trustpilot
Verified customer reviews
30,000+ miners delivered
Shipped worldwide since 2020
1,200+ customers globally
Trusted in 50+ countries
Pricing, lead time, and hosting options. Personal advice from our sales team.
Pricing, lead time, and hosting options. Personal advice from our sales team.
Free quote, reply in 24h. No sales call.
4.7 / 5 on Trustpilot
Verified customer reviews
30,000+ miners delivered
Shipped worldwide since 2020
1,200+ customers globally
Trusted in 50+ countries
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.
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.
Our mining specialists can help you find the perfect miner for your setup and budget.
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.
Highest hashrate non rack S21 Hydro model. XP+ tier for maximum output at 15.0 J/TH efficiency.
Broad voltage compatibility in a hydro miner. More deployment flexibility than 380V only competitors.
Ships from MillionMiner with Bitmain warranty and free DDP delivery.
358 TH/s SHA-256 at 5,370W hydro. 15 J/TH.
Yes. From $0.055/kWh. Free DDP shipping.
