Whatsminer M60S: The MicroBT Mid-Range Alternative

Specs

MicroBT's Whatsminer M60S shipped in 2024 and remains a mid-range reference in 2026. Positioned below the Antminer S21 Pro on efficiency, it is also noticeably cheaper to buy.

Spec	Value
Hashrate	172 TH/s ±3 %
Power	3,240 W ±5 %
Efficiency	18.8 J/TH
Cooling	Air, 4 integrated fans
Dimensions	425 × 195 × 290 mm
Weight	14.5 kg
Power supply	Integrated PSU
Connectivity	Ethernet RJ45
Nominal noise	75 dB(A)
Max ambient temperature	35 °C
New price 2026	about $4,200 ($24.4/TH)

The M60S ships in several bins, from 170 to 186 TH/s, all around 18.5 to 18.8 J/TH. The figures on this page cover the 172 TH/s bin; check the one on your invoice, since price per TH has to follow hashrate. The machine descends directly from the M50S line, on a proven architecture. MicroBT has built a solid reputation for durability in industrial environments, notably on Texan and Kazakh farms.

Note the 35 °C maximum ambient temperature, against 40 °C for the S21 Pro. On a poorly ventilated site or at peak summer, that 5 °C of headroom decides which machine derates first.

Head to head with the Antminer S21 Pro

Criterion	M60S	S21 Pro
Hashrate	172 TH/s	234 TH/s
Power	3,240 W	3,510 W
Efficiency	18.8 J/TH	15.0 J/TH
Price per TH	$24.4/TH	$25.6/TH
Daily consumption	77.8 kWh	84.2 kWh
Daily gross margin	$4.09	$6.81
Break-even kWh	$0.111/kWh	$0.139/kWh
Payback	about 34 months	about 29 months

Assumptions: hashprice of $50/PH/day, electricity at $0.058/kWh.

The M60S is 25 % less efficient than the S21 Pro, for 5 % less per TH. That efficiency gap reads clearest in the break-even line: the M60S stops earning at $0.111/kWh, while the S21 Pro holds to $0.139/kWh. That is 20 % less headroom on your electricity rate.

What that means in practice: at high hashprice, above $60/PH/day, the S21 Pro takes the lead through efficiency. At low hashprice, below $40/PH/day, the two converge and the M60S wins on gross return per dollar invested, provided your rate sits well under $0.085/kWh.

The choice therefore depends on your forward hashprice scenario, an uncertainty no calculator resolves. See Bitcoin Mining Profitability 2026 to test the sensitivity.

Noise and reliability

75 dB(A) on air cooling, exactly like the S21 Pro. For a residential deployment, neither qualifies.

On reliability, MicroBT has a solid history. Hashrate Index and BraiinsPool report a mean time between failures slightly above equivalent Antminer models, on the order of 10 % across twenty-four months of continuous operation. The gap is real without being decisive across a handful of machines; it matters more on a fleet of several hundred units, where it translates into RMAs per year.

Stock firmware is less open than Bitmain's, with fewer third-party firmwares available. For most operators that changes nothing. For anyone wanting fine underclock or overclock control, it is a limit worth knowing before buying.

MicroBT after-sales in Europe

MicroBT support runs through authorized resellers. The main European distributors, including asicminer.fr, captainmining, and mineshop.eu, handle RMA and the manufacturer warranty, one year on new units and typically extended to twenty-four months in hosting contracts.

Three points to fold into the operating calculation:

• Typical RMA turnaround is 4 to 8 weeks, since the route runs through China.
• Return shipping generally stays at the customer's cost.
• The warranty applies only if the serial number is traceable and the machine unmodified: third-party firmware voids it.

In professional hosting, the host handles warranty in bulk, which removes that administrative load from the machine owner.

Do not confuse M60S and M60S+ 17W

Two close SKUs, frequently mixed up by second-hand resellers:

	M60S	M60S+ 17W
Hashrate	172 TH/s	206 TH/s
Efficiency	18.8 J/TH	17.0 J/TH
Power	3,240 W	3,502 W
Indicative price	about $4,200	about $5,000
Price per TH	$24.4/TH	$24.3/TH
Daily gross margin	$4.09	$5.43
Break-even kWh	$0.111/kWh	$0.123/kWh
Payback	about 34 months	about 30 months

Both machines cost the same per TH. The M60S+ is therefore the better buy of the two as soon as the budget allows, since it pays back faster and tolerates a higher electricity rate at identical cost per terahash. Check the exact reference on the invoice before paying, the advertised hashrate being the only reliable way to tell them apart in a listing photo.

Reference deployment, Q1 2026

Washington State site, 16 units, hosting at $0.071/kWh

• Cumulative hashrate: 2,752 TH/s
• Average hashprice over the period: about $39/PH/day
• Gross revenue: $108 per day
• Electricity cost: 16 × 77.8 kWh × $0.071 = $88 per day
• Gross margin: $20 per day, so $600 per month across the fleet
• Machine cost: about $67,200
• Payback under those conditions: about 9.2 years

This deployment shows what an average rate combined with a low hashprice produces. At $0.071/kWh, the M60S sits only $0.040 below its break-even, and any dip in hashprice puts the fleet underwater. The same fleet at $0.045/kWh would clear roughly $53 per day, so a payback closer to three and a half years.

Reliability observed over 120 days

• 1 defective hashboard out of 48, handled as an RMA through the European distributor and replaced in 4 weeks
• No PSU failures
• No thermal throttling observed, on temperate sites

How the RMA actually ran

1. Diagnosis by the European distributor: 3 days
2. RMA approval by MicroBT: 5 days, correspondence in English
3. Return shipping to China: 21 days
4. Replacement machine received: 35 days total

That is about three weeks more than equivalent Bitmain RMAs through the same channels. On a machine clearing $4.09 of margin per day, 35 days out of service represents $143 of lost revenue, on top of return shipping.

What it adds up to

The M60S is the right pick when the S21 Pro is over budget or out of stock, and when your electricity rate stays well under $0.085/kWh. Its strengths are a competitive price per TH, recognized field reliability, and structured European distribution.

Its limits come down to three things: an 18.8 J/TH efficiency that narrows your headroom on electricity, a 35 °C maximum ambient more constraining than the Antminer's, and a noticeably longer RMA turnaround.

Above a $5,000 budget, the M60S+ 17W makes the M60S hard to justify. On a constrained budget the M60S stays coherent, provided you have checked that your hosting rate leaves at least $0.03 of headroom below the break-even.

See New vs Refurbished ASIC for the M60S used market, already active in 2026 on US sites renewing their fleets.

Back to the Bitcoin ASIC guide and the Antminer S21 Pro review.

Disclaimer: Bitcoin mining carries a risk of capital loss. Profitability figures rest on 2026 hashprice and electricity rate assumptions, which vary substantially.