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Bitcoin miners for sale: BTC mining machines and SHA-256 ASIC hardware

Buy bitcoin miners at MillionMiner, with 231+ SHA-256 ASICs in stock from Bitmain and MicroBT in air-cooled, hydro and immersion builds. Available bitcoin mining machines include the Antminer S21, S21 Pro, S23 and WhatsMiner M63S, running from about 17.5 J/TH down to near 9.5 J/TH on the newest hardware, new and tested pre-owned.

Every btc miner ships with full warranty and free worldwide DDP, so the checkout price is the final landed cost with duties handled. Buy to run yourself, or deploy your bitcoin mining hardware into our US hosting with power, cooling and uptime covered. Shop the full range of bitcoin miners for sale below

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At a Glance

Bitcoin Mining Catalog at a Glance

The MillionMiner SHA-256 catalog covers every current-generation Bitcoin miner: Bitmain Antminer S21 series, S23 series, S23 Hydro 3U, plus the MicroBT WhatsMiner M60, M66 and M78 lines. Hashrate from 95 TH/s entry-level units up to 1,160 TH/s flagship hydro miners. Efficiency from 9.5 J/TH on the top-tier to 17.5 J/TH on workhorse air-cooled models. Pick by efficiency for hosted setups, pick by hashrate per dollar for self-hosted operations.

Models in catalog

143

SHA-256 ASICs in stock

Hashrate Range

95–1,160 TH/s

S19 entry up to S23 Hyd 3U

Best Efficiency

9.5 J/TH

Antminer S23 Hyd 3U flagship

Top Brands

4

Bitmain · MicroBT · Canaan · Auradine

Filter & Sort
Filtered results Bitdeer
Bitdeer SealMiner A4 Ultra Hydro (886TH)

Bitdeer

In Stock

Bitdeer SealMiner A4 Ultra Hydro 886 TH/s SHA-256 Bitcoin Miner

Daily Profit +$27.86
Starting from

$9,999.00
Bitdeer SealMiner A4 Pro Hydro (680TH)

Bitdeer

In Stock

Bitdeer SealMiner A4 Pro Hydro (680TH)

Daily Profit +$20.20
Starting from

$8,699.00
Bitdeer SealMiner A3 Pro Hydro (660TH)

Bitdeer

In Stock

Bitdeer SealMiner A3 Pro Hydro (660TH)

Daily Profit +$18.34
Starting from

$10,449.00
Bitdeer SealMiner A3 Hydro (500TH)

Bitdeer

In Stock

Bitdeer SealMiner A3 Hydro (500TH)

Daily Profit +$13.29
Starting from

$7,400.00
Bitdeer SealMiner A2 Pro Hydro (500TH)

Bitdeer

In Stock

Bitdeer SealMiner A2 Pro Hydro (500TH)

Daily Profit +$12.45
Starting from

$6,900.00
Bitdeer Sealminer A2 Hydro (446Th)

Bitdeer

In Stock

Bitdeer Sealminer A2 Hydro (446Th)

Daily Profit +$10.25
Starting from

$7,494.00
Bitdeer SealMiner A4 Pro Air (336TH)

Bitdeer

In Stock

Bitdeer SealMiner A4 Pro Air (336TH)

Daily Profit +$9.98
Starting from

$6,750.00
Bitdeer SealMiner A3 Pro Air (290TH)

Bitdeer

In Stock

Bitdeer SealMiner A3 Pro Air (290TH)

Daily Profit +$8.06
Starting from

$4,490.00
Bitdeer SealMiner A3 Air (260TH)

Bitdeer

Out of Stock

Bitdeer SealMiner A3 Air (260TH)

Daily Profit +$6.76
Contact for price
Bitdeer SealMiner A2 Pro Air (255TH)

Bitdeer

In Stock

Bitdeer SealMiner A2 Pro Air (255TH)

Daily Profit +$6.36
Starting from

$4,106.00
Bitdeer Sealminer A2 (226Th)

Bitdeer

In Stock

Bitdeer Sealminer A2 (226Th)

Daily Profit +$5.19
Starting from

$3,999.00

Verified Stock

Every unit tested before shipping

Fast Dispatch

Ships within 1–3 business days

Crypto Accepted

Pay with BTC, ETH, USDT & more

Expert Support

Mining specialists ready to help

About Bitcoin Mining

The Original Proof-of-Work, Still the World's Most Secure Network

Bitcoin is the first and largest proof-of-work cryptocurrency, securing over a trillion dollars of value with a global network of dedicated SHA-256 bitcoin miners. Since the genesis block in January 2009, mining has evolved from hobbyist CPU computation to a multi-billion dollar industrial sector, yet the mechanism is unchanged: miners compete to find valid SHA-256 hash solutions, and the winner adds the next block and earns the block reward. Buy a bitcoin asic miner and you become part of the most battle-tested financial infrastructure in history.

Network Hashrate

987 EH/s

Block Reward

3.1347 BTC

Algorithm

SHA-256

Block Time

~9 min

Bitcoin Mining Timeline

15+ Years of Mining History

2009 Genesis Block

Satoshi Nakamoto mines the first Bitcoin block on Jan 3rd, embedding the Times headline about bank bailouts. Block reward: 50 BTC.

2010 GPU Era Begins

Miners discover GPUs hash SHA-256 far faster than CPUs. First real-world Bitcoin transaction: 10,000 BTC for two pizzas.

2013 ASIC Revolution

First dedicated SHA-256 ASICs ship. CPUs and GPUs rendered obsolete overnight. Industrial mining begins.

2016 2nd Halving

Block reward drops to 12.5 BTC. Professional mining operations dominate. Hashrate continues growing.

2020 3rd Halving

Block reward drops to 6.25 BTC. Institutional interest surges. Mining becomes a recognised asset class.

2024 4th Halving

Block reward drops to 3.125 BTC at block 840,000. Network hashrate exceeds 600 EH/s. Most competitive era in mining history.

2025 1 ZH/s Milestone

Bitcoin network hashrate crosses 1 zettahash per second for the first time.

2026 Efficiency Era

Sub-15 J/TH miners become the new standard. Network difficulty doubles in 18 months.

The Foundation

Why Bitcoin Mining Remains the Bedrock of Proof-of-Work

Bitcoin has been mining continuously since January 3rd, 2009, over 15 years without a single hour of downtime; no other proof-of-work network comes close. The industry has survived exchange collapses, regulatory crackdowns, multiple 80 percent plus price crashes, four halvings, and the transition from CPU to GPU to FPGA to ASIC, and emerged stronger each time.

Today the network is secured by nearly 800 exahashes per second of computational power, more than all other proof-of-work networks combined by orders of magnitude. When you buy bitcoin mining hardware, you are not just purchasing equipment: a btc miner is a productive asset that generates BTC daily, contributes to the network's security budget, and participates in the most proven monetary network ever built. The 21 million coin cap, the halving schedule and SHA-256 have not changed in 15 years and cannot change without consensus. That immutability is the point.

The Algorithm

SHA-256: The Algorithm That Secures $1 Trillion

SHA-256 was developed by the NSA and published by NIST in 2001; Satoshi chose it for a reason, and modern bitcoin miners have pushed it to extraordinary heights.

01

Deterministic & Collision-Resistant

A fixed 256-bit output for any input; a single changed character produces a completely different hash. In 15+ years of Bitcoin, no collision has ever been found. The protocol has never been compromised at this level.

02

Purpose-Built ASIC Advantage

Because SHA-256 has not changed in 15 years, engineers have had over a decade to optimize silicon for it: a current bitcoin miner machine executes 200+ TH/s under 20 J/TH, performance no GPU or CPU can approach and the reason a graphics-card bitcoin mining rig cannot compete on this algorithm.

03

Double SHA-256 for Block Headers

Bitcoin hashes each block header twice, the first output becoming the second input, hardening the chain against length-extension attacks and keeping work per attempt constant and predictable.

04

BTC Paid Directly to Your Wallet

When your pool finds a block, BTC rewards settle on-chain and are distributed to your self-custody Bitcoin wallet on the pool's payout schedule. No custodian. No exchange counterparty risk. The coins are yours the moment they arrive on-chain, secured by the same SHA-256 cryptography your miner spent electricity to produce.

The Mining Process

How Bitcoin ASIC Mining Works

The mechanics of Bitcoin mining are elegant in their simplicity, and the ASIC hardware that executes them is engineering at its absolute limit.

01

ASIC Hashes the Block Header

A btc miner performs trillions of double SHA-256 computations per second, varying the nonce each time, hunting a hash under the difficulty target, which adjusts every 2,016 blocks (~2 weeks) to hold the ~10-minute block time.

02

Valid Block Broadcast to Network

The winning machine broadcasts the completed block; other bitcoin miners verify in milliseconds and start building on top of it. That chain-building is the security model.

03

Pool Aggregates Hashrate & Shares Rewards

Because a solo block find is statistically rare, virtually all miners join pools: the pool finds blocks regularly and splits the 3.125 BTC proportionally by contributed shares. Daily income becomes predictable rather than lottery-like.

04

BTC Lands in Your Wallet

Pool payouts are sent on-chain to your Bitcoin wallet address, typically once daily when your balance exceeds the pool's minimum payout threshold. The coins are fully on-chain and self-custodied from the moment they arrive. No exchange account, no custodian, no counterparty. Stack sats directly to hardware or software wallets you control.

The Halving Cycle

Bitcoin Halving: The Most Important Event in Mining

Every 210,000 blocks, roughly four years, the block reward is cut in half. The halving is hard-coded and cannot be altered by any miner, developer or government; it is what caps supply at 21 million. For operators it cuts daily BTC revenue overnight, yet each halving has historically been followed by a significant bull market. The miners who cross a halving with efficient bitcoin mining hardware and cheap power are the ones positioned to benefit.

The 2024 halving cut the reward from 6.25 to 3.125 BTC; at ~144 blocks per day the network issues roughly 450 BTC daily. Over the coming decades, transaction fees gradually replace the subsidy. Post-halving, efficiency decides everything: the best bitcoin miner after a halving is the most efficient one, not the biggest.

Halving history: 2009 genesis 50 BTC · 2012 first halving 25 BTC · 2016 second 12.5 BTC · 2020 third 6.25 BTC · 2024 fourth 3.125 BTC · ~2028 fifth 1.5625 BTC.

Complete Halving History

Block Reward Per Halving Era

Genesis

2009

50.000 BTC

block 0

The beginning. Satoshi mines the first 50 BTC. CPU mining era.

Halving 1

2012

25.000 BTC

block 210,000

First halving. GPU and early FPGA/ASIC era. BTC went from ~$12 to ~$1,100 in following year.

Halving 2

2016

12.500 BTC

block 420,000

Industrial ASIC dominance. BTC rose from ~$650 to ~$20,000 in following 18 months.

Halving 3

2020

6.250 BTC

block 630,000

Institutional era begins. BTC surged from ~$9,000 to ~$69,000 within 18 months.

Halving 4

2024

3.125 BTC

block 840,000

Current era. Next-gen ASICs (S21, M60S). 600+ EH/s network hashrate.

Halving 5

~2028

1.5625 BTC

block 1,050,000

Projected. Fee revenue increasingly critical for miner economics.

Home vs Industrial

Bitcoin Mining From Home: Is It Still Worth It?

Home mining is challenging in 2026 but not impossible. Modern flagships draw 3,500W+, close to the limit of a standard 20A circuit, at 70 to 80 dB. For most home miners, a single bitcoin mining machine running in a garage, basement or shed is the practical ceiling without electrical upgrades.

The critical variable is your tariff. At residential rates above $0.12/kWh, margins are very thin at current difficulty; below $0.07/kWh, through favourable tariffs, solar or off-peak pricing, a home bitcoin mining rig can generate meaningful BTC accumulation even at modest scale. Many home miners treat it as a disciplined BTC savings mechanism rather than a profit-maximizing business.

Industrial Scale

Where Bitcoin Mining Economics Really Work

Professional operations reach economics home setups cannot, through industrial power and purpose-built facilities. That is exactly what our US hosting delivers from $0.07/kWh with a free 24 hour test: the same bitcoin mining hardware, a fraction of the residential power bill.

Colocation gives you the best of both worlds: industrial power pricing and professionally managed infrastructure, while you retain full hardware ownership and point your machines at whichever pool you choose. We work with colocation partners globally, contact our team for introductions.

Colocation available Bulk pricing on request Ask our team
Buyer's Guide

Choosing the Right Bitcoin ASIC Miner

The bitcoin ASIC market is the most mature in mining. Three numbers decide the choice, whether you are comparing your first btc miner or standardising a fleet, and they are how the best bitcoin miner for your rate gets picked: by arithmetic, not by headline.

Hashrate (TH/s)

Entry-level machines start around 120 TH/s; current flagships reach 200 to 300+ TH/s. More hashrate means a proportionally larger share of the daily reward.

Higher = More BTC

Efficiency (J/TH)

The single most important number for long-term economics: the best current machines run 15 to 18 J/TH, older generations 30 to 50, twice the electricity for the same work. Over a year, a 10 J/TH gap on a flagship bitcoin miner machine amounts to thousands of dollars of power.

Lower = Cheaper to Run

Price & ROI Window

Prices track the BTC spot price and depreciate as newer generations arrive, so weigh machine cost against your modelled output in the mining calculator with your own power rate, and model the next halving inside your holding window.

Shorter = Safer
Why Mine Bitcoin?

Bitcoin Mining vs Altcoin Mining

Bitcoin mining is not the only PoW option, but it offers characteristics that no altcoin can match. Here is an honest comparison for miners considering portfolio allocation.

Factor Bitcoin (BTC) Kaspa (KAS) Litecoin (LTC)
Liquidity Deepest globally Mid-cap, growing Good, established
Algorithm SHA-256 kHeavyHash Scrypt
Block Time ~10 minutes 1 second ~2.5 minutes
Halving Every ~4 years Smooth annual ~50% Every ~4 years
ASIC Market Largest & most mature Rapidly growing Mature & stable
Price Volatility Lower (large cap) Higher (mid cap) Medium
Long-term Outlook Reserve asset thesis Growth/speculation Payments/DeFi
Network Age 15+ years (2009) 3 years (2021) 12+ years (2011)

Many professional operations mine Bitcoin as their core position and allocate a portion of capital to higher-volatility altcoin ASICs (Kaspa, Alephium, Aleo) for growth exposure. Bitcoin provides the floor; altcoins provide the upside leverage.

The Numbers

Understanding Bitcoin Mining Profitability

Four variables drive the result for any bitcoin miner. Get all four right and you compound; get one wrong and margins evaporate.

01

BTC Price (USD)

Daily output is fixed by hashrate and difficulty; its fiat value is not. Operators with low power costs accumulate BTC at cost through bear markets and benefit from recovery without selling the hardware.

02

Network Difficulty & Hashrate Growth

The adjustment holds blocks at ~10 minutes but dilutes your share as new machines ship in volume. Always model 12-month returns assuming 20 to 40 percent difficulty growth.

03

Electricity Cost ($/kWh)

Power is everything: a flagship at roughly 3,500W more than doubles its daily power cost between $0.05/kWh and $0.12/kWh, and over a year that gap alone can exceed the price of the bitcoin miner itself. Run your own rate in the calculator.

04

Uptime

Every offline hour is lost production against running fixed costs; professional cooling and maintenance pay for themselves.

Pool Selection

Best Bitcoin Mining Pools currently

Pool choice matters more than most new bitcoin miners realise: fee, payout scheme, minimum threshold, server infrastructure and stance on block composition all affect the bottom line. FPPS pays the subsidy plus a fee share by hashrate and is now the dominant scheme for income predictability; PPLNS can pay more on lucky streaks but adds variance most operations avoid. For network health, consider pool concentration: hashrate spread across independent pools strengthens the system your btc miner helps secure. The NiceHash note stays as on the live page: a hashpower marketplace rather than a pool, with payouts that regularly beat standard FPPS. Our maintained comparison lives at /mining-pools.

NiceHash Not a Pool Often Highest Profit

NiceHash is not a traditional mining pool, it is a hashpower marketplace. Instead of mining Bitcoin directly, you rent your hashrate to buyers who pay a premium for it, and NiceHash pays you in BTC.

Foundry USA ~0% FPPS

Largest Bitcoin pool by hashrate. US-based, institutional-grade infrastructure. No fee on FPPS mode for qualifying miners. Excellent for large operations.

Antpool 0–2% FPPS / PPS+

Bitmain's official pool. One of the oldest and largest. Full FPPS mode available. Global infrastructure with strong uptime record.

F2Pool 2% FPPS

One of the longest-running pools globally. Multi-coin support. Mature infrastructure, transparent fee structure, daily payouts.

ViaBTC 2% FPPS / PPS+

Established Chinese pool with global servers. Full FPPS mode, good dashboard, multi-coin support. Competitive for Asian-based miners.

Braiins Pool (Slush) 2% FPPS+

The original Bitcoin mining pool (formerly Slush Pool). Strong transparency and Bitcoin-native ethos. Braiins OS firmware integration available.

Watch Out

Common Bitcoin Mining Mistakes

Bitcoin mining is unforgiving. These are the errors that cost miners thousands, sometimes before their hardware even arrives.

Not Modelling the Next Halving

The most expensive mistake: a 24-month window bought today contains the 2028 halving, cutting revenue mid-payback. Target payback before the halving or a power cost that survives the cut.

Prioritising Hashrate Over Efficiency

An older 35 J/TH machine always loses to a newer 18 J/TH one once electricity is counted. For any bitcoin mining machine, check J/TH before the headline TH/s.

Buying at Peak BTC Price

Every bitcoin miner for sale tracks the BTC price; hardware bought at peaks carries the highest cost basis. Historically, the best buying windows come in bear markets.

Ignoring the True Cost of Power

Transmission losses, fees and cooling belong in the calculation, not just the stated tariff.

Solo Mining a Flagship ASIC

70 to 80 dB and several kilowatts of heat need a home. If you do not have one, hosting is the clean answer.

Underestimating Setup & Ongoing Costs

Hardware is only part of the total investment. PDUs, network switches, cooling infrastructure (fans, ducting, or immersion systems), hosting fees, insurance, and maintenance all add up. A realistic full-cost model for a new Bitcoin miner installation includes 15–25% on top of the hardware cost for infrastructure and first-year operational overhead. Build this into your business case before purchasing.

FAQ

Bitcoin Mining FAQ

Everything you need to know before buying your first, or your next, Bitcoin ASIC miner.

Bitcoin mining uses ASIC hardware to compute SHA-256 hashes, validating transactions and adding blocks to the blockchain. The miner that finds a valid hash wins the block reward (3.125 BTC after the 2024 halving). Only dedicated ASIC miners can competitively mine Bitcoin today.

The Bitmain Antminer S23 (318 TH/s, ~15 J/TH) is currently the most efficient Bitcoin miner available. The S21 Pro (234 TH/s) and S21 XP (270 TH/s) are excellent alternatives. For water-cooled setups, the S23 Hydro (580 TH/s) delivers maximum hashrate per unit.

At $0.07/kWh with an Antminer S23, electricity cost per BTC is approximately $12,000-$16,000 at current difficulty. At residential rates ($0.12/kWh), this rises to $20,000-$28,000. With MillionMiner hosting at $0.07/kWh, you get near-optimal electricity costs without facility investment.

Yes, with efficient hardware and low electricity. Latest-gen miners like the Antminer S23 at $0.07/kWh hosting generate significant daily returns. Profitability depends on BTC price, difficulty and your J/TH efficiency. Always plan with best/base/worst case scenarios.

The halving cuts block rewards in half every ~4 years. The last halving (April 2024) reduced rewards from 6.25 to 3.125 BTC. The next halving is projected for early 2028, reducing rewards to 1.5625 BTC. Halvings historically precede bull markets, miners who survive compression benefit most.

The Antminer S23 uses ~4,700W, the S21 Pro uses 3,510W. Running 24/7, an S23 costs ~$240/month at $0.07/kWh ( hosting rate ) or ~$340/month at residential $0.10/kWh. Power cost is the single biggest factor in mining profitability.

Top pools: Foundry USA (largest by hashrate, FPPS), AntPool, F2Pool (global), ViaBTC, Braiins Pool. Choose FPPS payout for stable income. Pick a pool with servers near your hardware for lowest latency. Most pools charge 1-2% fees.

Yes, but ASICs generate 75-85 dB noise and 3,000-5,000W heat. You need a dedicated 240V circuit and ventilated space. Many miners choose professional hosting instead. For quieter home mining, consider hydro-cooled models at ~40-50 dB.

Formula: Daily Revenue = (Your TH/s / Network TH/s) x Daily BTC issued x BTC price. Daily Cost = Watts x 24h x $/kWh. Include: hardware cost, pool fee (1-2%), difficulty growth (~30%/year), and the 2028 halving. Use WhatToMine for live calculations.

Yes. Purchase any Bitcoin miner from our shop and add hosting from $0.07/kWh 99.9% uptime, real-time dashboard, free repairs, 24/7 support. 1.79 EH/s of hashpower currently hosted across 4 U.S. facilities.

The S23 (318 TH/s, ~15 J/TH) delivers 36% more hashrate than the S21 Pro (234 TH/s, 15 J/TH) at similar efficiency. The S23 costs more upfront but earns faster ROI. The S21 Pro is a strong budget option. Both available with free DDP shipping.

Bitmain Antminer: 180-day manufacturer warranty. MicroBT WhatsMiner: 180 days. For miners with MillionMiner hosting we provide free on-site repairs and full RMA handling, benefits only possible because we control the entire chain. See our FAQ for details.

Hydro-cooled miners replace fans with water cooling for dramatically lower noise (~40 dB), better efficiency and higher hashrate. The Antminer S21 Hydro (335 TH/s) and S23 Hydro (580 TH/s) are the leading models. Ideal for noise-sensitive environments or maximum density deployments.

Connect power (240V recommended), plug in Ethernet, access the web interface via browser, enter your pool URL and wallet address, save, mining starts within minutes. MillionMiner provides setup assistance. For hosted miners we handle the entire setup for you.

Yes, all Bitcoin miners ship with free worldwide DDP delivery No customs duties, no import taxes. We ship to 50+ countries via DHL, FedEx and UPS with full tracking and insurance. In-stock miners dispatch within 1-3 business days.

Yes. MillionMiner specializes in B2B bulk orders with volume pricing and dedicated account managers. Contact our B2B team with model, quantity, country and timeline. We offer combined purchase + hosting packages for large deployments.

Mining difficulty adjusts every 2,016 blocks (~2 weeks) to maintain ~10-minute block times. As more hashrate joins the network, difficulty rises and individual miners earn less BTC. Difficulty has historically grown 20-40% annually. Always factor difficulty growth into ROI projections.

Bitcoin mining is legal in most countries including the USA, EU, UK, Canada, Australia and UAE. Some jurisdictions have specific energy regulations or reporting requirements. Check your local laws. MillionMiner ships to 50+ countries where mining is legally permitted.

A well-maintained ASIC lasts 3-5 years of continuous operation. With MillionMiner hosting climate-controlled facilities and regular maintenance extend operational life. Economic lifespan depends on difficulty growth and newer, more efficient models being released.

SHA-256 miners only mine SHA-256 coins (Bitcoin, Bitcoin Cash). For other coins, you need different ASICs: Scrypt miners for Dogecoin/Litecoin, KHeavyHash miners for Kaspa or hydro miners for maximum efficiency. Browse our full ASIC miner shop for all options.

Our team is available 24/7 via WhatsApp (+49 176 777 888 33), email and phone. We help with miner selection, hosting plans, setup and B2B orders. Contact us or visit our FAQ for instant answers.

Ready to Start Mining Bitcoin?

Browse the full range of bitcoin miners for sale above, from accessible entry-level units to flagship machines. Whether you are stacking sats from home or scaling an industrial operation, tell us your power rate, budget and goal and we will find the right hardware.

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