Bitmain
Antminer S21 Pro
The Antminer S21 Pro by Bitmain is a SHA256 ASIC miner delivering 234 TH/s at 3510W power consumption with 15 J/TH efficiency. It mines Bitcoin, Bitcoin Cash, Bitcoin SV. Available for purchase from MinerHaolan with fast international shipping from Hong Kong and manufacturer warranty included.
Algorithm
SHA256
Hashrate
234 TH/s
Power
3510W
Available Coins
SSL Secured
256-bit encryption
180-Day Warranty
Full coverage
Free Shipping
Orders over $5,000
Buyer Protection
Verified seller
The S21 Pro delivers 234 TH/s at 15 J/TH efficiency with air cooling, drawing 3510W. Features multiple power modes for flexibility: 245 TH/s at 3875W (HEM), 234 TH/s at 3510W (NEM), and 220 TH/s at 3300W (LEM). This power-mode flexibility allows tuning to local electricity costs and facility power budgets. RJ45 Ethernet 10/100M connectivity for standard network integration. Operating range: -20°C to 45°C, 10%–90% humidity. Combines S21 XP architecture with mid-tier performance, bridging efficiency and power draw for professional and facility deployments.
Key Features
- Industry-leading 15 J/TH energy efficiency
- Powerful 234 TH/s hashrate for maximum profitability
- Advanced thermal management with Air-cooled (4 fans)
- Easy setup and management via web interface
Profitability Calculator🟢 Live Data
Estimates for Antminer S21 Pro, from live network hashrate and price
Daily Power
84.2 kWh
Power Cost
-$6.74
Daily BTC
0.0001163 BTC
Revenue
$7.69
Daily
$0.96
Monthly
$29.08
Yearly
$348.71
* Revenue from live network hashrate, block time and block reward (source: WhatToMine), assumes a 1% pool fee, and extrapolates today's difficulty and price flat for the monthly/yearly figures.
Customer Reviews
Sign in to write a review4.3
Based on 25 reviews
Flawless operation from day one
From the moment I plugged in my Antminer S21 Pro, it's been flawless. No configuration headaches, no performance issues. Just solid, consistent mining. Couldn't ask for more.
Documentation was complete
My Antminer S21 Pro came with complete documentation - manuals, warranty info, setup guides. MinerHaolan provides everything you need to get started immediately.
ROI timeline is realistic for containers
Did extensive modeling before buying the Antminer S21 Pro and the actual ROI is tracking close to our projections. At current BTC prices and our electricity rate of $0.045/kWh, we're looking at roughly 14 months to break even. Not bad for infrastructure at this scale.
Thermal management excellence
The thermal management on the Antminer S21 Pro is excellent. Runs at optimal temperatures consistently, which contributes to its impressive efficiency numbers. Well designed product.
DHCP and static IP both supported
The Antminer S21 Pro supports both DHCP and static IP configuration. I assigned a static IP through my router and it's been rock solid. Consistent access to the web interface without hunting for the IP address. Basic but important feature done right.
Frequently Asked Questions about Antminer S21 Pro
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