Bitmain
Antminer T21
The Antminer T21 by Bitmain is a SHA256 ASIC miner delivering 190 TH/s at 3610W power consumption with 19.0 J/TH efficiency. It mines BTC. Available for purchase from MinerHaolan with fast international shipping from Hong Kong and manufacturer warranty included.
Algorithm
SHA256
Hashrate
190 TH/s
Power
3610W
Available Coins
SSL Secured
256-bit encryption
180-Day Warranty
Full coverage
Free Shipping
Orders over $5,000
Buyer Protection
Verified seller
Bitmain's T-series Bitcoin ASIC delivering 190 TH/s at 19.0 J/TH efficiency with 3610W power consumption. Operates on 380-415V three-phase power. Mines SHA256 cryptocurrency: BTC, BCH, BSV. Air-cooled with four high-performance fans. Offers a balanced middle ground between the high-end S-series and entry-level models—solid hashrate at competitive power efficiency without the premium price of flagship units. Suitable for home miners and small operations willing to run three-phase power. Ethernet-connected for monitoring.
Key Features
- Industry-leading 19.0 J/TH energy efficiency
- Powerful 190 TH/s hashrate for maximum profitability
- Advanced thermal management with 4x Fans
- Easy setup and management via web interface
Profitability Calculator🟢 Live Data
Estimates for Antminer T21, from live network hashrate and price
Daily Power
86.6 kWh
Power Cost
-$6.93
Daily BTC
0.00009442 BTC
Revenue
$6.25
Daily
-$0.68
Monthly
-$20.81
Yearly
-$249.47
* 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 30 reviews
Winter operation is effortless
Running the Antminer T21 through a Minnesota winter and honestly it's easier than summer. The waste heat keeps the container at ideal temps even at -20°F outside. We actually reduced cooling power during winter months, which improved our efficiency numbers.
After-sales support is excellent
The after-sales support for my Antminer T21 has been excellent. MinerHaolan follows up to ensure satisfaction. This level of care is uncommon in this industry.
Solid workhorse, nothing flashy
The Antminer T21 isn't going to win any design awards, but it's a solid workhorse. Does exactly what it's supposed to do — mine consistently, day after day. Sometimes boring reliability is exactly what you want from mining hardware.
Reliable seller, highly recommend
After researching sellers extensively, I chose MinerHaolan for my Antminer T21. No regrets - reliable, professional, and trustworthy. They've earned a repeat customer.
Scaled from 1 to 3 containers in a year
Started with one Antminer T21 last year and we're now running three. The modularity is the real selling point — each container is its own self-contained data center. Our total hash rate tripled without any of the headaches of traditional facility expansion.
Frequently Asked Questions about Antminer T21
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