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MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner
The MicroBT Bitcoin & Bitcoin Cash ASIC Miner with 274TH hashrate, 5452.6W power draw and 19.9W/TH efficiency.
For SHA-256 mining, MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner brings together 274TH/s, 19.9W/TH efficiency, 5452W power draw, and a current price of £2072.00. It suits customers comparing real operating fit rather than one headline figure.
🚀 The MicroBT Whatsminer M66 Immersion 274Th is an ASIC miner built for the SHA-256 algorithm, optimised specifically for mining . Developed by MicroBT, this miner is part of the acclaimed Whatsminer M Series, released in 2023.
⚙️ Key Specifications:
274THHashrate
SHA-256Algorithm
19.9W/THEfficiency
5452WPower Draw
ImmersionCooling💰 Mining Compatibility: The Whatsminer M66 Immersion was built with native support for mining on the SHA-256 algorithm. You can mine coins like Bitcoin, Bitcoin Cash, Bitcoin SV, eCash, DigiByte, Namecoin, Syscoin, Elastos, Peercoin, Fractal Bitcoin and Hathor, or earn Bitcoin on NiceHash.
🌡️ The Whatsminer M66 features Immersion cooling technology where additional cooling equipment is required. Contact us for details on suitable cooling solutions for this miner
Today's Live Price:
£2,072.00
excl. VAT · UK delivery & import duties included
Market-linked pricing — your price is locked when you order
Market-linked pricing — your price is locked when you order
Full Details & Specifications
About the MicroBT Whatsminer M66 Immersion 274Th ASIC Miner
What is the MicroBT Whatsminer M66 Immersion 274Th ASIC miner for Bitcoin & Bitcoin Cash (SHA-256 mining)?
The MicroBT Whatsminer M66 Immersion 274Th is an ASIC Miner built for the SHA-256 algorithm and optimised to mine Bitcoin & Bitcoin Cash. It delivers a hash rate of 274TH at an efficiency of 19.9W/TH, drawing 5452W at 440V (7.23A). Built by MicroBT as part of the MicroBT Whatsminer M Series and released in October 2023, it connects via Wired Ethernet and uses Immersion Cooling Technology.MicroBT Whatsminer M66 Immersion 274Th Key Features at a Glance:
MicroBT Whatsminer M66 Immersion 274Th Overall Summary
Taken as a whole, MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner combines 274TH/s, 19.9W/TH efficiency, 5452W power draw, and a current price of £2072.00. It suits customers comparing real operating fit rather than one headline figure.Is the MicroBT Whatsminer M66 Immersion 274Th the Right Miner for You?
Book a free consultation and we'll help you decide. Whether you're buying your first ASIC or scaling a farm, our team of seasoned miners will match you with the right machine, power plan and hosting for your goals.
Arrange a Call With One of Our Experts⚠️ Mining & Market Risk Disclaimer: Information about the MicroBT Whatsminer M66 Immersion 274Th (also referred to as MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner) is provided for product comparison and operating guidance only. Mining outcomes can vary materially due to coin prices, network difficulty, block rewards, fees, electricity rates, uptime, and regulatory changes. If you understand the costs and operating requirements, the MicroBT Whatsminer M66 Immersion 274Th can be a strong hardware choice when matched to the right power and hosting plan. Past performance is not indicative of future results. Always do your own research and seek independent professional advice from multiple sources before purchasing or operating mining hardware.
Product Specifications
Product Overview |
|
|---|---|
| Miner Type | ASIC Miner |
| Condition | New |
| Stock Availability | In stock |
| Product Type | Cryptocurrency Miner |
| Manufacturer | MicroBT |
| Model | Whatsminer M66 |
| Series | Whatsminer M Series |
| Family | MicroBT M6x Family |
| Also Known As | Bitcoin ASIC Miner, MicroBT Bitcoin & Bitcoin Cash Miner, MicroBT Whatsminer M66 Immersion 274Th, Whatsminer M66 Immersion |
| Release Date | October 2023 |
| Release Year | 2023 |
Mining Performance |
|
| Algorithm | SHA-256 |
| Hashrate | 274TH |
| Raw Hashrate | 274000000000000H |
| Efficiency | 19.9W/TH |
| Power Consumption (W) | 5452W |
Electrical Requirements |
|
| Voltage (V) | 440V |
| Nominal Voltage | 380V – 480V |
| Phase Requirement | Three Phase |
| Input Frequency | 50/60 Hz |
| Rated Current (A) | 21.7A per phase @ 440V |
| Recommended Breaker Rating | 10A |
Cooling & Airflow |
|
| Cooling Method | Immersion |
| Number of Fans | 0, External Cooling Equipment Required: Fan Count Depends on the External Cooling Setup. |
Heat Output & Cooling Load |
|
| Heat Output (kW) | 5.45kW |
| BTU Per Hour | 18,604 BTU/h |
| BTU Range | 16,744 – 21,395 BTU/h |
| Cooling Tons | 1.55 ton |
| Cooling Tons Range | 1.40 – 1.78 ton |
Operating Environment |
|
| Operating Temperature Range | 5 – 40 °C, 41 – 104 °F |
| Operating Humidity | 10 – 90 % |
| Noise Level Range | 0dB, External Cooling Equipment Required: Check Pump/Radiator/Chiller Noise Level. |
| Running Temperature | 36 °C, 97 °F |
| Running Temperature Range | 35 – 38 °C, 95 – 100 °F |
ASIC Chip Architecture |
|
| Generation | 10th Generation SHA-256 Miner |
| ASIC Chip Family | KF197x Family |
| ASIC Chip | KF1973 |
| ASIC Chip Process (nm) | 3nm |
| ASIC Chip Era | 3nm (Gen 10) |
| ASIC Chip Date Range | October 2023 – Present |
Mining Compatibility |
|
| Primary Mineable Coin | Bitcoin (BTC) |
| Primary Mineable Assets | Bitcoin & Bitcoin Cash |
| Mining Mode Compatibility | Pool Mining, Solo Mining |
| Mineable Coins | Acoin (ACOIN), Bitcoin (BTC), Bitcoin Vault (BTCV2), BitcoinCash (BCH), BitcoinSV (BSV), Curecoin (CURE), DigiByte (DGB), eCash (XEC), Elastos (ELA), eMark (DEM), Fractal Bitcoin (FB), Hathor (HTR), Joulecoin (XJO), Namecoin (NMC), Nicehash (BTC), Peercoin (PPC), Quai-Scrypt (QUAI), Terracoin (TRC), Unbreakable (UNB) |
Network Connectivity |
|
| Network Interface | RJ45 Ethernet 10/100M |
Physical Specifications |
|
| Dimensions | 48.3 × 66.3 × 8.6 cm |
| Weight | 27.5 kg |
Warranty, Support & Delivery |
|
| Warranty | 12 Month – Manufacturer + MiningShop Care |
| Support | Expert Mining Support Included |
| Delivery | DDP – UK/EU Warehouse – Duties & Taxes included. |
Product Highlights |
|
| Highlights | 🛢️ Immersion Ready, 3️⃣ Three Phase Miners |
Earnings By Asset
What This Miner Earns Across Every Asset
Compare estimated pool earnings, solo-mining probability, and pool-versus-solo outcomes for this exact machine.
Pool mining earnings for MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner
| Mineable Asset | ||||||||
|---|---|---|---|---|---|---|---|---|
 Quai (QUAI)£0.008559▼ 2.36% |
DayEarnings:£8.49Rewards:991.80 QUAI | WeekEarnings:£59.42Rewards:6,942.57 QUAI | MonthEarnings:£258.38Rewards:30,187.78 QUAI | 3 MonthEarnings:£775.15Rewards:90,563.35 QUAI | 6 MonthEarnings:£1,550.30Rewards:181,126.70 QUAI | YearEarnings:£3,100.60Rewards:362,253.41 QUAI | Year 2Earnings:£6,201.20Rewards:724,506.81 QUAI | ROI: |
  Nicehash (BTC)£56,608.24▼ 0.09% |
DayEarnings:£7.58Rewards:0.00013385 BTC | WeekEarnings:£53.04Rewards:0.00093694 BTC | MonthEarnings:£230.62Rewards:0.00407403 BTC | 3 MonthEarnings:£691.87Rewards:0.01222209 BTC | 6 MonthEarnings:£1,383.74Rewards:0.02444417 BTC | YearEarnings:£2,767.48Rewards:0.04888835 BTC | Year 2Earnings:£5,534.97Rewards:0.09777669 BTC | ROI: |
|
Bitcoin (BTC)£55,215.67▼ 0.34% |
DayEarnings:£7.56Rewards:0.00013700 BTC | WeekEarnings:£52.95Rewards:0.00095900 BTC | MonthEarnings:£230.25Rewards:0.00416994 BTC | 3 MonthEarnings:£690.74Rewards:0.01250981 BTC | 6 MonthEarnings:£1,381.48Rewards:0.02501963 BTC | YearEarnings:£2,762.95Rewards:0.05003925 BTC | Year 2Earnings:£5,525.90Rewards:0.10007850 BTC | ROI: |
 BitcoinCash (BCH)£204.44▼ 1.68% |
DayEarnings:£7.48Rewards:0.03660640 BCH | WeekEarnings:£52.39Rewards:0.25624480 BCH | MonthEarnings:£227.79Rewards:1.1142 BCH | 3 MonthEarnings:£683.37Rewards:3.3426 BCH | 6 MonthEarnings:£1,366.75Rewards:6.6852 BCH | YearEarnings:£2,733.49Rewards:13.3705 BCH | Year 2Earnings:£5,466.98Rewards:26.7410 BCH | ROI: |
 Peercoin (PPC)£0.19▲ 2.35% |
DayEarnings:£7.31Rewards:38.2343 PPC | WeekEarnings:£51.16Rewards:267.64 PPC | MonthEarnings:£222.46Rewards:1,163.76 PPC | 3 MonthEarnings:£667.37Rewards:3,491.27 PPC | 6 MonthEarnings:£1,334.74Rewards:6,982.54 PPC | YearEarnings:£2,669.47Rewards:13,965.07 PPC | Year 2Earnings:£5,338.95Rewards:27,930.15 PPC | ROI: |
 DigiByte (DGB)£0.003075▼ 2.90% |
DayEarnings:£6.52Rewards:2,121.15 DGB | WeekEarnings:£45.66Rewards:14,848.02 DGB | MonthEarnings:£198.52Rewards:64,562.38 DGB | 3 MonthEarnings:£595.56Rewards:193,687.14 DGB | 6 MonthEarnings:£1,191.12Rewards:387,374.28 DGB | YearEarnings:£2,382.24Rewards:774,748.56 DGB | Year 2Earnings:£4,764.49Rewards:1,549,497.12 DGB | ROI: |
 Fractal Bitcoin (FB)£0.25▲ 2.23% |
DayEarnings:£6.24Rewards:24.5812 FB | WeekEarnings:£43.68Rewards:172.07 FB | MonthEarnings:£189.93Rewards:748.19 FB | 3 MonthEarnings:£569.78Rewards:2,244.57 FB | 6 MonthEarnings:£1,139.57Rewards:4,489.15 FB | YearEarnings:£2,279.14Rewards:8,978.29 FB | Year 2Earnings:£4,558.27Rewards:17,956.58 FB | ROI: |
Solo mining earnings for MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner
Solo versus pool mining earnings for MicroBT Whatsminer M66 Immersion 274Th SHA-256 Bitcoin Miner
Full Product Specifications
Every verified specification for this machine — performance, electrical, cooling, chip architecture and compatibility.
RATED BY REAL MINERS
What UK Miners Say About Us
Every review below is public, named and independently hosted.
"Darren was incredibly knowledgeable and patient… He explained the pros and cons clearly and tailored his advice to my specific needs rather than pushing a generic solution… What really sets Darren and the team apart, though, is the after-sales support. They have remained responsive, helpful, and proactive even after the sale was completed… An outstanding experience from start to finish."
"It’s rare to find a genuinely trustworthy company in the mining industry, but my experience here has been excellent… Their after-sales support has also been outstanding. Highly recommended."
"The Mining Shop UK truly are amazing, Darren always goes above and beyond making sure every question (no matter how small and silly) is answered… has really helped my business grow."
"Incredibly knowledgeable and gave me some really valuable information without any pressure. If you’re looking for people in the mining space who actually know what they’re talking about, these are your guys."
"The support and service they supplied me was amazing… I would definitely recommend them and I personally will be purchasing my next miner from them."
"They gave me the good advice on how to best repair my device and keep costs low. Honest and really polite. Definitely recommend. You are in good hands with them."
Why The Mining Shop
Why Buy Your ASIC Miner from The Mining Shop UK Ltd?
10
Reasons Customers Choose Us for ASIC Miners
100% UK-based – registered company with office & repair lab in Hartlepool, North-East England.
Mining since 2011 – 15+ years of trust with hobbyists and international farms.
Fully tested before dispatch – every unit’s PSU & hash-boards are bench-tested in our Hartlepool lab.
12-month no-quibble warranty – extendable to 24 months – better cover than most manufacturers.
Hosting on six continents – electricity from £0.04/kWh if you need cheaper power.
In-house board-level repairs – same-week turnaround on most RMA cases.
Real humans, 7 days a week – friendly UK staff on phone and email whenever you need us.
Free consultations – earnings, ROI & power-cost advice for new and seasoned miners alike.
Plug-and-play setup help – we walk you through wallets and pool configs so you’re hashing on day one.
Buy-back & upgrade programme – trade in older units as you scale.
Your Edge Starts Before You Plug It In
From our Hartlepool test bench to your first hash — seasoned engineers, rapid warranty cover, and global hosting that slashes your power bill. Real support that doesn’t disappear after checkout.
Hosting for the Miner
Electricity from £0.04/kWh across six continents — see which of our hosting sites support this miner.
YOUR MINER, OUR EXPERTISE
How to Order Your Whatsminer M66 Immersion
From quote to ongoing support in six simple steps.
1
Request Quote
Tell us what you need and get a fast quote.
2
Volume Pricing
Tiered discounts on multi-unit and bulk orders.
3
Confirm Order
Approve your quote and receive your invoice.
4
Insured Shipping
Fully insured delivery, tracked door to door.
5
Setup or Collection
Delivered and set up, or collect in the UK.
6
Ongoing Support
UK experts on hand for the life of your miner.
Verified Hardware
Fully tested & quality checked.
Secure Payments
Safe, encrypted transactions.
UK Based
Local support and fast response.
ASIC Miner FAQ
Whatsminer M66 Immersion Questions & Answers
Frequently Asked Questions
Straight answers to what buyers ask most before ordering this miner — live profitability and ROI, power and cooling, payment and delivery, hosting and warranty. If anything is unclear, our team is one message away.
Key specs and live earnings for this exact machine — pulled straight from our live product data.
The Whatsminer M66 Immersion is a MicroBT Bitcoin & Bitcoin Cash miner built on the SHA-256 algorithm. It delivers 274TH of hashrate at 5452.6W with an efficiency of 19.9W/TH, using Immersion cooling.
Every unit is supplied brand new through The Mining Shop UK — inspected, tested and quality checked before dispatch.
Our live data currently estimates around £258.38 per month on a 24-hour average for the Whatsminer M66 Immersion, with an estimated ROI of about 244 days at today's prices and network difficulty.
Real earnings move with coin price, difficulty and your electricity or hosting rate — treat every figure as an estimate, never a guarantee.
The Whatsminer M66 Immersion mines Bitcoin & Bitcoin Cash and other cryptocurrencies that use the SHA-256 algorithm, so you can point it at whichever supported coin or pool suits your strategy.
ASIC miners are algorithm-specific, so it cannot switch to coins on other algorithms — if you want a different coin, browse the full range or ask our team what fits.
How payment, dispatch and duties-included UK delivery work when you order.
We accept UK bank transfer and selected stablecoin payments such as USDT or USDC. We do not take cash, and card payments are generally not accepted on high-value hardware.
For your security we never change bank details by email — if anything looks unusual, stop and call us before sending funds.
In-stock machines are dispatched within 24–48 business hours of cleared payment, and UK delivery typically takes 2–5 business days on a tracked service.
We can also ship straight to a hosting facility, or arrange collection by appointment once funds have cleared.
Yes — on direct orders the price you see is the price you pay. Delivery, import duties and applicable taxes are handled by us.
That means no surprise courier invoices or customs paperwork after checkout.
Running this miner at home, pool setup before dispatch, and what hosting looks like in practice.
Check your power, heat and noise first: the Whatsminer M66 Immersion draws 5452.6W and uses Immersion cooling, so it may need a dedicated circuit and proper ventilation rather than a standard socket.
If home is not practical, hosting gives you the same machine on wholesale power with heat and noise handled for you.
Yes. Send us your pool and worker details and we test your miner on your own pool before it ships — you can watch it hashing on your pool dashboard before it even arrives.
We never need your pool passwords, and every order includes a welcome pack covering the practical steps.
Yes. You own the miner, we run it in a specialist facility with 96–99% uptime targets, and rewards go straight from the pool to your own wallet — we never hold your coins.
Hosting is typically a 12-month term with the first month paid upfront — see how hosting works, or ask about Mine Before It Arrives (£40 + VAT) to start earning while your Whatsminer M66 Immersion is still in transit.
The cover, repairs and UK support behind every machine we sell.
A 12-month manufacturer warranty as standard. We log serial numbers, photograph key components and keep your test reports on file, which makes any claim far smoother.
Overclocking, unauthorised firmware, unsuitable power supplies or third-party dismantling voids cover — talk to us before modifying anything.
Yes — diagnostics and repairs are in-house services covering hashboards, PSUs, fans and firmware, with a £150 + VAT diagnosis fee deducted from your final invoice if we complete the repair.
Repair customers get a dashboard showing progress, photos and inspection records.
We have mined since 2011 and sell only brand-new, genuine hardware — every machine is inspected, serial-logged and test-run on your own pool before dispatch.
Sales, hosting, repairs and honest advice under one roof — talk to the team before you order and you will never buy blind.
Need Help Choosing a Miner?
Not sure this is the right machine for your budget, power rate or setup? Tell us what you are working with.
Our team has mined since 2011 — you will get straight answers on profitability, hosting and the best-fit hardware before you spend a penny.
Our team has mined since 2011 — you will get straight answers on profitability, hosting and the best-fit hardware before you spend a penny.