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Bitmain Antminer S21 XP Bitcoin Miner

(3 customer reviews)

Original price was: $5,600.00.Current price is: $3,100.00.

Bitmain Antminer S21 XP mining the SHA 256 algorithm has a maximum hash rate of 270Th/s at a power consumption of 3645W. Weighing around 18.7 kgs, Bitmain Antminer S21 XP gives an energy efficiency of 13.5j/Th. The ASIC comes with a warranty period of 365 days.

118 in stock

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18 - 20 Jun, 2026
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Description

Bitmain engineered the Antminer S21 XP (270Th) specifically for the SHA-256 algorithm, empowering you to mine Bitcoin (BTC) with industry-leading precision. It delivers a maximum hashrate of 270Th/s while consuming 3645W of power, resulting in an energy efficiency of 13.5j/Th.

Antminer S21 XP Specification

Manufacturer Bitmain
Model Antminer S21 XP
Size w/o 449 X 219 X 293mm
Size with 640 X 360 X 450mm
Weight Net 18700g
Noise level 76db
Fan(s) 4
Power 3645W
Voltage 220-277
Interface Ethernet
Storage Temp. -20-70
Temperature -20 – 45 °C
Humidity 10 – 90 %
Warranty 365 Days
Operational Details
  • Hardware Architecture: Built with advanced 5-nm chips in collaboration with TSMC, providing up to a 40% efficiency improvement over older S19 models.
  • Acoustic & Thermal:
    • The Air-Cooled version uses four high-speed fans, generating approximately 75–76 dB of noise.
    • The Hydro and Immersion versions are significantly quieter, making them better suited for noise-sensitive industrial environments, though they require specialized cooling infrastructure.
  • Power Requirements:
    • Air-cooled units typically require 220–277V.
    • Hydro and Immersion units often require 380–415V three-phase power, suitable for industrial-scale data centers.

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

Weight 18.7 kg
Color

Silver, Black, Gold

Memory

128 Gb, 256 Gb, 512Gb, 1 Tb

3 reviews for Bitmain Antminer S21 XP Bitcoin Miner

  1. Perez dian

    Comprei o Antminer S21 XP recentemente e estou impressionado com o desempenho. O consumo de energia é mais eficiente do que eu esperava e o equipamento funciona sem problemas. Entrega rápida e suporte respondeu minhas dúvidas. Muito satisfeito com a compra.

  2. Adalbert comman

    Der Antminer S21 XP läuft stabil und liefert die versprochene Leistung. Die Installation war unkompliziert, und die Energieeffizienz ist im Vergleich zu meinem vorherigen Miner deutlich besser. Lieferung war schnell und professionell. Klare Empfehlung für ernsthafte Miner.

  3. Dan Nina

    I’ve been running the Antminer S21 XP for a few weeks now, and the performance has been solid. Hash rate is consistent with specs, and efficiency is noticeably better than my older units. Shipping was smooth and the unit arrived well-packaged. Overall, very satisfied with the upgrade.

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Quick Comparison

Bitmain Antminer S21 XP Bitcoin Miner removeCanaan Avalon Q removeGoldshell KA Box II removeBitmain Antminer S23 hyd. 3u removeMicroBT WhatsMiner M60S removeBitdeer SealMiner A2 Pro Hydro remove
NameBitmain Antminer S21 XP Bitcoin Miner removeCanaan Avalon Q removeGoldshell KA Box II removeBitmain Antminer S23 hyd. 3u removeMicroBT WhatsMiner M60S removeBitdeer SealMiner A2 Pro Hydro remove
ImageAntminer-S21 XPCanaan-Avalon-Qgoldshell ka box-11Bitmain Antminer_S23_Hyd_3Umicrobt whatsminer m60sBitdeer-SealMiner-A2-Pro-Hydro
SKUS21XPAVALONQKAB11U3S23HYDM60SA2Pro
Rating
Price Original price was: $5,600.00.Current price is: $3,100.00.$1,260.00$480.00 Original price was: $12,500.00.Current price is: $10,500.00.$1,600.00 Original price was: $7,500.00.Current price is: $4,900.00.
Stock

118 in stock

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150 in stock

Weight18.7 kg10.5 kg2.2 kgN/A13.5 kg20.5 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 18.7 kg
Color

Silver, Black, Gold

Memory

128 Gb, 256 Gb, 512Gb, 1 Tb

Weight 10.5 kg
Algorithm

SHA-256

color

Black, White

Weight 2.2 kg
Algorithm

KHeavyHash

Color

Gold, Black, Silver

Algorithm

SHA-256

Weight 13.5 kg
Algorithm

SHA-256

Weight 20.5 kg
Color

Black, White

DescriptionBitmain Antminer S21 XP mining the SHA 256 algorithm has a maximum hash rate of 270Th/s at a power consumption of 3645W. Weighing around 18.7 kgs, Bitmain Antminer S21 XP gives an energy efficiency of 13.5j/Th. The ASIC comes with a warranty period of 365 days.The Canaan Avalon Q is a home-focused Bitcoin ASIC miner released in early 2025, designed specifically for quiet, residential operation. It delivers a hashrate of 90 TH/s with an energy efficiency of 18.6 J/TH, positioning it as a professional-grade alternative for home miners who want higher yields than entry-level "heater" miners like the Avalon Nano 3The Goldshell KA BOX II is a compact home ASIC miner specifically designed for mining Kaspa (KAS) and other coins using the kHeavyHash algorithm. It is part of Goldshell's "Box" series, which prioritizes quiet operation and a small form factor suitable for residential use.

Bitmain Antminer S23 Hyd 3U (1.16 PH/s) – Ultra-High Performance Hydro-Cooled Bitcoin ASIC Miner. The New Benchmark in Bitcoin Mining Power and Efficiency

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.The Bitdeer SealMiner A2 Pro Hydro is an industrial-grade, water-cooled ASIC miner designed for high-performance Bitcoin (SHA-256) mining. It delivers a high hashrate of 500 TH/s with a power consumption of 7450W, yielding an efficiency of 14.9 J/T. The Hydro cooling system ensures superior heat dissipation for high efficiency
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