Bitmain · Bitcoin Miner
Bitmain Antminer S21 XP 270T
⚡270 TH/sHashrate
🔌3,645WPower
📊13.5 J/THEfficiency
🔊75 dBNoise
🌀Air-Cooled (4 Fans)Cooling
🏠Industrial / Mining FarmUse Case
Live Profitability (€0.10/kWh)Live BTC
+€5.80
Per Day
+€174.00
Per Month
~29mo
ROI Est.
ℹ️ At current BTC price · Adjust your rate →
€3,600
In Stock
Ships via
🇪🇺EU Warehouse
No customs
No customs
Express Delivery
🛡️1-Year Warranty
Overview
Bitmain Antminer S21 XP 270T — Full Review (2025–2026)
Everything you need to know before buying.
⚡ Quick Answer
The Bitmain Antminer S21 XP 270T is a Industrial / Mining Farm SHA-256 Bitcoin miner by Bitmain, delivering 270 TH/s at 13.5 J/TH energy efficiency. It draws 3645W and produces 75 dB of noise — making it a powerful home mining solution balancing performance and reasonable noise levels.
The Bitmain Antminer S21 XP 270T is the most efficient air-cooled Bitcoin ASIC miner available today. With 270 TH/s at just 13.5 J/TH, it sets the efficiency benchmark for serious mining farms looking to maximise profitability at EU electricity rates.
Specifications sourced from {{brand}} official product data. Profitability estimates calculated using live BTC network difficulty and current BTC price. Reviewed by the Mineshop.eu team.
Key Highlights
- 270 TH/s hashrate — top-tier output for industrial deployments
- 13.5 J/TH efficiency — best-in-class air-cooled ASIC
- 4nm chip technology — Bitmain most advanced node
- Profitable at EU electricity rates up to 0.18 EUR/kWh
- In stock at our EU warehouse — ships in 2-3 business days
- Compatible with all major pools: Foundry, Antpool, F2Pool, ViaBTC
💡 Who is this for? Professional mining farms, serious investors building industrial operations, operators with access to competitive electricity rates below 0.15 EUR/kWh.
⚠️ Not ideal for: Home use — 75 dB is as loud as a vacuum cleaner. Requires industrial 3-phase-compatible PDU setup and proper ventilation.
Technical Specifications
Full Specifications
📋 At a Glance — Bitmain Antminer S21 XP 270T
Algorithm: SHA-256
Hashrate: 270 TH/s
Power draw: 3645W
Efficiency: 13.5 J/TH
Noise level: 75 dB
Cooling: Air-Cooled (4 Fans)
Manufacturer: Bitmain
Release year: 2024–2025
Voltage: 200-240V AC
Use case: Industrial / Mining Farm
EU price (Mineshop.eu): €3,600 · In stock · Ships 2–3 days
⚡ Performance
ModelBitmain Antminer S21 XP 270T
ManufacturerBitmain
AlgorithmSHA-256
CoinsBitcoin (BTC)
Hashrate270 TH/s
Power3645W
Efficiency13.5 J/TH
Chip Process4nm
📦 Physical & Connectivity
Dimensions400 x 195 x 290 mm
Weight16 kg (net)
CoolingAir-Cooled (4 Fans)
Fan4 x high-performance fans
Noise75 dB
Input Voltage200-240V AC
NetworkEthernet RJ45
ProtocolsStratum V1, V2
Profitability Calculator
Is the Bitmain Antminer S21 XP 270T Profitable?
Adjust your electricity rate and BTC price to see real projected returns.
⚡ Bitmain Antminer S21 XP 270T Calculator
Live BTC — €62,704
€/kWh
€
#
Estimated Returns (after electricity)
Daily
gross
elec.
+€5.80
Weekly
gross
elec.
+€40.60
Monthly
gross
elec.
+€174.00
Yearly
gross
elec.
+€2,088
~29 months
Estimated ROI at €0.10/kWh
⚠️ All estimates based on live BTC price (€62,704), current network difficulty, and constant hashrate. Actual results vary. Not financial advice.
Mining Pools
Best Mining Pools for the Bitmain Antminer S21 XP 270T
Connect to any SHA-256 pool. Beginners: start with Antpool or F2Pool.
🐜
Antpool
Fee: 2.5% (FPPS) · 0% (PPLNS)
Bitmain's own pool. Best integration with Canaan firmware. Largest SHA-256 pool. Recommended for first-time setup.
🐟
F2Pool
Fee: 2.5% · Payout: 0.001 BTC min
One of the oldest and most reliable pools. Easy web dashboard, mobile app. Great for beginners and experienced miners alike.
🌊
OCEAN Pool
Fee: 0% · Direct on-chain payout
Non-custodial pool — paid directly from coinbase transactions. Best for privacy-focused miners.
🎲
CKPool Solo
Fee: 2% on block win
Solo mine and keep the full 3.125 BTC block reward if you find one. Very low probability — but it happens!
Setup Guide
How to Set Up the Bitmain Antminer S21 XP 270T
From unboxing to first hash in under 30 minutes.
1
📦 Unboxing
Your Bitmain Antminer S21 XP 270T arrives with the miner unit, power cable, and documentation. No tools required. Inspect for shipping damage and ensure all connectors are seated firmly before powering on.
2
🔌 Power Connection
Connect the power cable. The Bitmain Antminer S21 XP 270T requires 200-240V AC and draws 3645W. Use a dedicated circuit for safe continuous operation.
3
🌐 Network Setup
Connect via Ethernet RJ45. The miner gets an IP via DHCP automatically. Find its IP in your router DHCP client list, then open that IP in your browser to access the dashboard.
4
🏊 Configure Pool
Log into the miner dashboard (default: root/root — change this immediately). Go to Pool Configuration and enter your pool stratum address and wallet/worker name. Set a backup pool for redundancy.
5
🔊 Ventilation
Ensure at least 20–30cm clearance. Best suited for a dedicated space. Avoid enclosed spaces without airflow.
Troubleshooting
Common Issues & Fixes
🚫 Miner Not Turning On
Symptoms
No LEDs, no fan noise after connecting power.
Fix
- Try a different power cable
- Check the circuit breaker
- Test on a different outlet
- Contact warranty support if PSU suspected
🌡️ Overheating / High Temps
Symptoms
Chip temps above 85°C, automatic throttling, warning LED.
Fix
- Improve ventilation — ensure 30cm clearance
- Reduce ambient temperature below 35°C
- Clean dust from heatsinks/fans with compressed air
🌐 Pool Connection Issue
Symptoms
Dashboard shows rejected shares or pool offline. Worker not appearing in pool dashboard.
Fix
- Double-check stratum URL and port number
- Check for typos in worker name
- Try a different pool port (3333, 443, 25)
- Check pool status page for outages
📉 Lower Than Expected Hashrate
Symptoms
Miner hashing significantly below spec (>10% below nominal).
Fix
- Check chip temperatures — overheating causes throttling
- Allow 10+ minutes for pool hashrate to stabilise
- ±5% variance from spec is normal
- Update to latest firmware
FAQ
Frequently Asked Questions
Is the Bitmain Antminer S21 XP 270T good for home use?
Yes — the Bitmain Antminer S21 XP 270T is designed for home use. At 75 dB and 3645W, it is suitable for a garage, spare room, or home office.
How much power does the Bitmain Antminer S21 XP 270T consume?
The Bitmain Antminer S21 XP 270T draws 3645W continuously. Running 24/7 for a month, that is approximately 2624 kWh. At EU average electricity of €0.25/kWh, that is around €656/month.
What circuit or breaker is required?
A dedicated 16A circuit at 220–240V is recommended. The Bitmain Antminer S21 XP 270T draws 3645W continuously. Never share the circuit with other high-draw equipment.
Which mining pool works best with the Bitmain Antminer S21 XP 270T?
Any SHA-256 mining pool works. For beginners: Antpool or F2Pool. For privacy: OCEAN Pool. For solo mining: CKPool Solo.
How long is the ROI on the Bitmain Antminer S21 XP 270T?
At current BTC price (€82,000) and €0.10/kWh, ROI is approximately 29 months. Use the profitability calculator above for a personalised estimate.
Does it come with a warranty?
Yes — all Bitmain Antminer S21 XP 270T units from Mineshop.eu include a 1-year warranty covering manufacturing defects under normal operating conditions.
Can beginners set up the Bitmain Antminer S21 XP 270T?
Yes — the setup process is straightforward. Follow the step-by-step guide on this page. Most customers are up and mining within 20–30 minutes of delivery.
Our Verdict
Is the Bitmain Antminer S21 XP 270T Worth Buying?
✅ Buy if you...
- ✓ 270 TH/s hashrate — top-tier output for industrial deployments
- ✓ 13.5 J/TH efficiency — best-in-class air-cooled ASIC
- ✓ 4nm chip technology — Bitmain most advanced node
- ✓ Profitable at EU electricity rates up to 0.18 EUR/kWh
⚠️ Skip if you...
- ✗ Home use — 75 dB is as loud as a vacuum cleaner. Requires industrial 3-phase-compatible PDU setup and proper ventilation.
- ✗ Need to minimise upfront capital — ROI is ~29 months at €0.10/kWh
Mineshop.eu Rating
★★★★★ 4.1/5
Excellent home miner · Good price-to-hashrate
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