Proven in production
Widely deployed, so integration patterns, hosting availability and support are well established.
Bitmain
Bitmain Antminer S21 XP Hyd 473 TH/s SHA-256 Miner
A widely deployed hydro Antminer: 473 TH/s at 12 J/TH, with a 440 TH/s variant also available.
- Hashrate
- 473 TH/s
- Power
- 5676 W
- Efficiency
- 12 J/TH
- Algorithm
- SHA-256
- Cooling
- hydro
- Released
- February 2025
Need 10, 50 or 100+ units? Request volume pricing.
What Is the Bitmain Antminer S21 XP Hyd?
The Bitmain Antminer S21 XP Hyd is a hydro-cooled Bitcoin miner rated at 473 TH/s and 5,676 W (12.0 J/TH). Bitmain's February 2025 documentation also lists a 440 TH/s version at 5,280 W with the same efficiency.
This is one of the most widely deployed hydro Antminers in commercial farms, which makes it a practical benchmark: spare parts, integration experience and hosting slots are all easier to find than for newer models still shipping in limited batches.
Two binned versions were published — 440T and 473T — both at 12.0 J/TH on 380–415 V three-phase input. Choosing between them is normally a question of the power budget available per machine slot.
Bitmain Antminer S21 XP Hyd Specifications
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer S21 XP Hyd |
| Algorithm | SHA-256 |
| Hashrate | 473 TH/s |
| Power consumption | 5676 W |
| Efficiency | 12 J/TH |
| Cooling | Hydro (liquid) cooling |
| Form factor | Standalone hydro miner |
| Chip / platform | Not published — confirm with sales |
| Mineable coins | BTC, BCH, BSV |
| Input voltage | 380–415 V, 3-phase |
| Network interface | Ethernet (RJ45) |
| Dimensions | Not published — confirm with sales |
| Weight | Not published — confirm with sales |
| Noise level | ≈50 dB |
| Release date | February 2025 |
What Can the Antminer S21 XP Hyd Mine?
SHA-256 mining: Bitcoin, Bitcoin Cash and Bitcoin SV. Bitcoin remains the default target for commercial fleets.
- BTC
- BCH
- BSV
Antminer S21 XP Hyd Power Consumption & Electricity Cost
The Bitmain Antminer S21 XP Hyd is rated at approximately 5676 W at the wall. Electricity is usually the largest recurring cost of running it, so estimate the draw at your own rate before committing to a deployment.
- Cost per hour
- $0.40
- Cost per day
- $9.54
- Cost per month (30 days)
- $286.07
Based on a rated draw of 5676 W at 100% uptime: power in kW × 24 × your rate. Real consumption varies with firmware, ambient conditions and uptime.
Antminer S21 XP Hyd Hydro Cooling Requirements
The Bitmain Antminer S21 XP Hyd is a liquid-cooled unit. It has no onboard fans for the hashboards: heat is carried away by coolant circulating through a cold plate and must be rejected by external infrastructure — typically a dry cooler, cooling tower or plate heat exchanger sized for the site's total heat load.
A hydro deployment needs a closed loop with pumps, manifolds, filtration, quick-disconnect couplings and coolant treatment. Plan for water quality control and leak detection, and match manifold sizing to the number of units per row so flow rate stays inside the manufacturer's window.
The payoff is density and acoustics. Hydro units run far quieter than air-cooled miners, tolerate higher ambient temperatures, and let operators pack substantially more hashrate into the same floor area. Heat recovery is also practical, because the rejected heat leaves the machine as warm water rather than hot air.
Bitmain Antminer S21 XP Hyd Mining Profitability Calculator
Estimate the daily and monthly profitability of the Bitmain Antminer S21 XP Hyd based on its hashrate, power consumption, current Bitcoin price, Bitcoin network difficulty, and your electricity cost.
- Hashrate
- 473 TH/s
- Power draw
- 5676 W
Live profitability data temporarily unavailable.
Live Bitcoin price and network data could not be retrieved.
Estimated profitability for the Bitmain Antminer S21 XP Hyd. Mining profitability is an estimate and can change based on cryptocurrency price, network difficulty, transaction fees, pool fees, miner uptime, hardware performance, and electricity costs. Actual results may vary.
Why Consider the Bitmain Antminer S21 XP Hyd?
Two power tiers
440 TH/s at 5,280 W or 473 TH/s at 5,676 W lets you fit the machine to the circuit.
Secondary-market liquidity
A common model is easier to resell or redeploy than a niche SKU when strategy changes.
Who Is the Antminer S21 XP Hyd Best For?
- Farms standardising on one hydro model
- Hosting providers with S21-class slots
- Buyers who value availability over peak efficiency
- Operators planning staged expansion
Bitmain Antminer S21 XP Hyd vs Comparable Miners
How the Bitmain Antminer S21 XP Hyd compares with the closest alternatives MinersDeals supplies on hashrate, power draw, efficiency and cooling.
| Model | Hashrate | Algorithm | Power | Efficiency | Cooling | Release |
|---|---|---|---|---|---|---|
| Bitmain Antminer S21 XP Hyd | 473 TH/s | SHA-256 | 5676 W | 12 J/TH | Hydro (liquid) cooling | February 2025 |
| Bitmain Antminer S21 XP+ Hyd | 500 TH/s | SHA-256 | 5500 W | 11 J/TH | Hydro (liquid) cooling | November 2025 |
| Bitmain Antminer S21j XP Hyd | 495 TH/s | SHA-256 | 5940 W | 12 J/TH | Hydro (liquid) cooling | Late 2025 / early 2026 |
| Bitdeer SealMiner A3 Pro Hydro | 660 TH/s | SHA-256 | 8250 W | 12.5 J/TH | Hydro (liquid) cooling | — |
Efficiency (joules per unit of hashrate) determines how long a machine stays profitable as network difficulty rises, while total power draw determines what electrical and cooling infrastructure you need per unit. A more efficient miner is not automatically the better purchase — price per terahash, availability and the cost of the cooling infrastructure it demands all feed into the decision.
If you are weighing two of these models against each other, send us your electricity rate, target quantity and site cooling type and we will model the comparison against real availability and pricing.
Bitmain Antminer S21 XP Hyd Price
Pricing for the Bitmain Antminer S21 XP Hyd can vary depending on quantity, availability, market conditions and fulfillment requirements. MinersDeals provides individual and volume quotes for qualified buyers, so we publish current pricing on request rather than as a fixed list price.
Buying multiple units? Ask about volume pricing.
Buy Bitmain Antminer S21 XP Hyd
Looking to purchase the Bitmain Antminer S21 XP Hyd? MinersDeals helps individual buyers, mining operators and enterprise customers source specialized hardware. Submit your requirements to receive current availability and pricing.
Wholesale & Bulk Antminer S21 XP Hyd Orders
Planning a larger deployment? Request pricing for 10, 50, 100 or more units. MinersDeals supports hardware procurement for mining farms, hosting providers and infrastructure operators, including staged delivery across multiple sites.
Frequently Asked Questions
What is the S21 XP Hyd hashrate?
473 TH/s at 5,676 W, with a 440 TH/s variant at 5,280 W. Both are rated 12.0 J/T.
When was it released?
February 2025, per Bitmain's support documentation and product manual.
What input voltage does it need?
380–415 V three-phase.
How does it compare with the S23 Hyd?
The S23 Hyd is significantly more efficient (9.5 vs 12 J/TH) and faster at 580 TH/s. The S21 XP Hyd typically costs less per terahash.
What are its dimensions and weight?
Not stated in the official documentation we track. Request the current spec sheet from sales.
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