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Bitmain Antminer S21 XP Bitcoin Miner

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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24 - 26 Jun, 2026
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SKU : S21XP Categories : , Brand:

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@skybounddrone.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://skybounddrone.com/

Additional information

Weight 18.7 kg
Color

Silver, Black, Gold

Memory

128 Gb, 256 Gb, 512Gb, 1 Tb

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Quick Comparison

Bitmain Antminer S21 XP Bitcoin Miner removeBitdeer SealMiner A2 Pro Hydro removeBitdeer Sealminer A3 Pro hyd removeBitmain Antminer X9 removeBitmain Antminer S23 removeBitmain antminer S19j pro 104th s remove
NameBitmain Antminer S21 XP Bitcoin Miner removeBitdeer SealMiner A2 Pro Hydro removeBitdeer Sealminer A3 Pro hyd removeBitmain Antminer X9 removeBitmain Antminer S23 removeBitmain antminer S19j pro 104th s remove
ImageAntminer-S21 XPPlaceholderPlaceholderPlaceholderBitmain Antminer S23Placeholder
SKUS21XPA2ProSA3PHAX9AS23ANTS19JP
Rating
Price Original price was: $5,600.00.Current price is: $3,100.00. Original price was: $7,500.00.Current price is: $4,900.00. Original price was: $2,800.00.Current price is: $2,300.00.$4,900.00$4,500.00$1,100.00
Stock

118 in stock

150 in stock

99 in stock

100 in stock

150 in stock

62 in stock

Weight18.7 kg20.5 kgN/A17.5 kg15.8 kgN/A
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 20.5 kg
Color

Black, White

Algorithm

SHA-256

Weight 17.5 kg
color

Black, Red, Blue, Silver

Algorithm

RandomX

Weight 15.8 kg
Algorithm

SHA-256

Algorithm

SHA-256

color

Gold, Silver, 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 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 efficiencyThe Bitdeer SealMiner A3 Pro Hydro represents the pinnacle of next-generation Bitcoin mining. With an extraordinary hash rate of 660 TH/s at 8250 W, this SHA-256 miner is designed for operators who need raw processing power without sacrificing efficiency.The Bitmain Antminer X9 is a professional-grade miner designed for the RandomX algorithm, primarily used for mining Monero (XMR). Released in 2026 as a significant upgrade to the previous Antminer X5, it delivers a hashrate of 1 MH/s (1000 KH/s) with a power consumption of 2472W.The Bitmain Antminer S23 is a next-generation SHA-256 ASIC miner series released in early 2026. It represents a major leap in efficiency, with the flagship hydro-cooled model reaching 9.5 J/TH—a roughly 40% improvement over the previous S21 seriesModel Antminer S19j Pro (104Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 104Th/s for a power consumption of 3068W.
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London Store: 27 Old Gloucester St. London United Kingdom WC1N 3AX

Company Number 14161765

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