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    Bitmain

    Antminer S21j XP Hydro

    The Antminer S21j XP Hydro by Bitmain is a SHA256 ASIC miner delivering 460 TH/s at 5520W power consumption with 12.0 J/TH efficiency. It mines BTC, BCH. Available for purchase from MinerHaolan with fast international shipping from Hong Kong and manufacturer warranty included.

    Hashrate460 TH/s
    Power5520W
    AlgorithmSHA256
    Efficiency12.0 J/TH

    Algorithm

    SHA256

    Hashrate

    460 TH/s

    Power

    5520W

    Available Coins

    BTC
    BCH
    $5,850$6,500
    Save $650
    In Stock - Ready to Ship
    1

    SSL Secured

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    180-Day Warranty

    Full coverage

    Free Shipping

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    The S21j XP Hydro is Bitmain's Japan-market variant of the S21 XP Hydro, delivering 460 TH/s at 12.0 J/TH (derating range: 460–495 TH/s depending on coolant temperature). Drawing 5520W with hydro cooling, its 12.0 J/TH is among the most efficient figures available in a hydro-cooled Bitcoin miner. Liquid cooling enables quiet operation suitable for residential or noise-restricted environments. Requires dedicated water infrastructure and coolant management, and is optimized for Japanese power standards.

    Key Features

    • Industry-leading 12.0 J/TH energy efficiency
    • Powerful 460 TH/s hashrate for maximum profitability
    • Advanced thermal management with Hydro Cooling
    • Easy setup and management via web interface

    Profitability Calculator
    🟢 Live Data

    Estimates for Antminer S21j XP Hydro, from live network hashrate and price

    $0.08/kWh
    $0.01$0.20
    $66,823.35

    Daily Power

    132.5 kWh

    Power Cost

    -$10.60

    Daily BTC

    0.0002286 BTC

    Revenue

    $15.12

    Estimated Profit
    Profitable

    Daily

    $4.52

    Monthly

    $137.72

    Yearly

    $1,651.39

    * 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.

    4.3

    Based on 23 reviews

    5★
    12
    4★
    8
    3★
    2
    2★
    1
    1★
    0
    87% Would Recommend
    Lucas van der Berg
    •Amsterdam, Netherlands
    Jul 6, 2026

    Remarkable hash rate accuracy

    The Antminer S21j XP Hydro hash rate is remarkably accurate to the specs. What you see on the datasheet is what you get in real-world operation. Refreshing honesty from MinerHaolan.

    Mateo Fernandez
    •Bogotá, Colombia
    Jun 25, 2026

    Monitoring is comprehensive

    The monitoring capabilities on the Antminer S21j XP Hydro are comprehensive. Temperature, fan speeds, hash rates - everything I need to keep my operation running smoothly.

    Nikos Papadopoulos
    •Athens, Greece
    Jun 14, 2026

    Build quality is impressive

    The build quality of the Antminer S21j XP Hydro is impressive. Solid construction, quality connectors, and proper cable management. Clearly designed by engineers who care.

    Liu Wei
    •Shanghai, China
    May 20, 2026

    Wi-Fi to Ethernet adapter worked fine

    My Antminer S21j XP Hydro location doesn't have Ethernet, so I used a Wi-Fi bridge. Works perfectly — stable connection, no dropped shares. The miner doesn't care how it gets to the internet, it just needs a connection.

    Yusuf Ahmed
    •Istanbul, Turkey
    May 9, 2026

    ROI faster than expected

    My Antminer S21j XP Hydro is paying itself off faster than I calculated. The efficiency and uptime mean more coins mined daily. Excellent return on investment.

    Frequently Asked Questions about Antminer S21j XP Hydro

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