Bitmain Antminer S21
$2,300.00
The Bitmain Antminer S21 is a high-efficiency ASIC miner for SHA-256 algorithms (Bitcoin/BCH), delivering ~200 TH/s at 3,500W (17.5 J/TH). It features air cooling, 4 high-speed fans, and operates between 220-277V, making it a top choice for professional, energy-efficient mining.
104 in stock
Guarantee safe & secure checkout
Description
The Antminer S21 by Bitmain features the powerful BM1368 chip, delivering 200 TH/s hashrate with 17.5 J/TH efficiency and 3500W power consumption. It features air cooling, 4 high-speed fans, and operates between 220-277V, making it a top choice for professional, energy-efficient mining.
- Hashrate: 200 TH/s
- Power Consumption: 3500W
- Efficiency: 17.5 J/TH
- Dimensions: 400 x 195 x 290 mm
- Weight: 15.4 kg
- Noise Level: 75-76 dB
- Algorithm: SHA-256
Purchasing Guidelines
1. Shipments will be scheduled on a first-paid-first-ship basis for orders on which ASIC MINERS has received full payment.
2. You are responsible for any customs delays or returned shipments due to a lack of proper documentation. It’s highly recommended to be aware of local customs clearance policies and prepare all customs documentation ahead of time to avoid delays or unexpected costs.
3. Please contact info@asicminerbulk.com for additional information on customs clearance for ASIC MINERS products.
Warranty
1. A 365-day warranty is provided starting from the shipping date. ASIC MINERS will cover shipping costs when shipping a replacement unit within the warranty period.
2. The warranty only applies to the original purchaser who purchased the machine directly from ASICMINERS.ORG. Once the miner is resold, warranty coverage becomes the responsibility of the re-seller.
3. If the user fails to use the product per the given instructions, specifications, and conditions provided or changes the function settings of the unit without ASIC MINER’s prior consent, ASIC MINERS will not be liable for any damage arising therefrom.
4. Click here for a complete list of the Terms & Conditions that apply to all orders placed on https://asicminerbulk.com/
Additional information
| color | Black, DarkSlateGrey, Silver |
|---|---|
| Algorithm | SHA-256 |
3 reviews for Bitmain Antminer S21
Quick Comparison
| Bitmain Antminer S21 remove | Antminer S19k Pro 136Th remove | MicroBT Whatsminer M63 Hydro remove | NerdMiner NerdOCTAxe (9.6TH/s) remove | MicroBT WhatsMiner M60S remove | Antminer ALPH Miner AL1 remove | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Bitmain Antminer S21 remove | Antminer S19k Pro 136Th remove | MicroBT Whatsminer M63 Hydro remove | NerdMiner NerdOCTAxe (9.6TH/s) remove | MicroBT WhatsMiner M60S remove | Antminer ALPH Miner AL1 remove | ||||||||||||||||||||||||||
| Image | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ||||||||||||||||||||||||||
| SKU | ANTS21 | S19k | M63H | NERDOCTX | M60S | ALPHAL1 | ||||||||||||||||||||||||||
| Rating | ||||||||||||||||||||||||||||||||
| Price | $2,300.00 | $700.00 | $2,550.00 | $490.00 | $1,600.00 | $10,900.00 | ||||||||||||||||||||||||||
| Stock | 104 in stock | 110 in stock | 80 in stock | 50 in stock | 95 in stock | 40 in stock | ||||||||||||||||||||||||||
| Weight | N/A | 13.2 kg | 27.5 kg | 3 kg | 13.5 kg | 16.5 kg | ||||||||||||||||||||||||||
| Dimensions | N/A | N/A | N/A | N/A | N/A | N/A | ||||||||||||||||||||||||||
| Additional information |
|
|
|
|
|
| ||||||||||||||||||||||||||
| Description | The Bitmain Antminer S21 is a high-efficiency ASIC miner for SHA-256 algorithms (Bitcoin/BCH), delivering ~200 TH/s at 3,500W (17.5 J/TH). It features air cooling, 4 high-speed fans, and operates between 220-277V, making it a top choice for professional, energy-efficient mining. | The Bitmain Antminer S19k Pro is an air-cooled ASIC miner designed for the SHA-256 algorithm, primarily used for mining Bitcoin (BTC). Released in mid-2023, it is widely considered one of the most efficient models of the S19 generation, balancing high performance with a competitive price point. | The MicroBT Whatsminer M63 Hydro series consists of high-performance, liquid-cooled ASIC miners designed for the SHA-256 algorithm, primarily used for mining Bitcoin (BTC) and Bitcoin Cash (BCH). Released in October 2023, these units utilize a fan-less hydro cooling system that reduces noise to approximately 50dB and allows for high-density 4U rack-mount deployments | NerdOCTAxe is manufactured by NerdMiner and supports the SHA-256 algorithm, offering hashrates of 9.6Th/s with consistent performance and a power consumption of 160W. | Whatsminer M60S is Manufactured By MicroBT And it’s mining SHA-256 algorithm which running maximum hashrate of 186Th/s for a power consumption of only 3441W. | Antminer AL1 is manufactured by Bitmain which operates under the Blake3 algorithm with a maximum hashrate of 15.6Th/s and power consumption of 3510W. | ||||||||||||||||||||||||||
| Add to cart |





Michael Rico –
Very impressed with the Antminer S21 performance. The hashrate is stable and matches the specs advertised. Delivery was faster than expected and the packaging was secure. Setup was straightforward, and it’s been running efficiently since day one. Solid experience overall.
Carlos Micco –
El Antminer S21 funciona perfectamente. El rendimiento es constante y el consumo energético es razonable para su potencia. El envío fue rápido y el servicio al cliente respondió a mis preguntas sin problemas. Muy satisfecho con la compra
Julien Dee –
Le Antminer S21 offre d’excellentes performances. L’installation était simple et la machine fonctionne de manière stable. La livraison a été rapide et bien organisée. Je recommande pour ceux qui cherchent un mineur fiable