Home / Blog / MicroBT Whatsminer M60S++
Machine review · Oct 12, 2026 · 5 min read
Whatsminer M60S++ review: 15.5 J/TH in an air-cooled box, and Nigeria is where it pays best
MicroBT's air-cooled M60S++ is a 13.5 kg machine that makes a bitcoin on 15.5 J/TH. It clears its power at 6¢ with room today, but the S21 Pro and S21+ return more in year one and the S21 XP makes a cheaper coin. After the halving, cheap power is where it belongs.
MicroBT Whatsminer M60S++ (228 TH/s)
The bottom line
The M60S++ is MicroBT's air-cooled Whatsminer from its M6XS++ series: 228 TH/s from 3,534 W in the bin we list, 15.5 J/TH. At our Argentina site, at 6¢, it makes a bitcoin for about $49,200 of electricity and returns roughly 35% in its first year at today's price. At Nigeria's 3.9¢ the same coin costs about $32,000.
Bought once its price settled, in June 2026, it has mined and kept 0.0125 BTC for $596 of power: $441 of cashflow against a $3,609 landed cost, which is what the first months of a four-year machine look like. Between now and the 2028 halving it has another 0.060 BTC in it, worth about $7,414 with bitcoin back at its previous high: roughly 2.2× its hardware by the halving, with the machine still running afterwards.
What you are buying is a small, shelf-sized air-cooled unit at $9.45 a terahash. What you are not buying is the cheapest coin: the S21 XP makes one for about $42,900 in the same hall against this machine's $49,200, and the S21 Pro returns about 40% in year one against this machine's 35%.
Scores
| Criterion | Score | Why |
|---|---|---|
| Cashflow | 6.5/10 | Makes a bitcoin for about $49,200 of electricity at 6¢ and returns roughly 35% in year one at today's price. It has covered 12% of its hardware so far and is on track for about 2.2× by the 2028 halving. The S21 Pro returns about 40%. |
| Longevity | 6/10 | At 15.5 J/TH its line is $22.32 a petahash a day at 6¢ and $14.51 at 3.9¢. Hashprice halved sits between the two, so after the halving it is a Nigeria machine, which is the move every machine makes once. |
| Efficiency | 6/10 | A good figure for the 2024 generation and a middling one now: the S21 XP and the M70S run 13.5 J/TH in an air-cooled box. |
| Quality control | 5/10 | Scored as unknown rather than as good. We found no operator reports of the M60S++ in the field that we could cite, and a repair shop's guide is a troubleshooting reference, not a failure rate. |
| Serviceability | 7/10 | MicroBT lists a one-year warranty with repair services within its scope, and the M60S family's hashboards have published repair guides. It is a 13.5 kg air-cooled unit. Hosted with us in Argentina, a fault is a parts bill and a line item. |
Weighted on what an owner gets back per dollar and how long the machine keeps clearing its power. It clears at 6¢ today and sits mid-pack on both measures: the S21 Pro and S21+ return more in year one, and the 13.5 J/TH machines make the cheaper coin.
Buy it if
- You want MicroBT hardware in an air-cooled hall and a unit light enough, at 13.5 kg, to rack on a standard shelf.
- Your power is at or below 6¢. At 6¢ it makes a coin for about $49,200; at 3.9¢, about $32,000.
- You expect to cross to Nigeria once, when the figures say so. At 15.5 J/TH its line there is $14.51 a petahash a day, well under today's hashprice and under half of it.
- You are adding hashrate in small steps, one 202 to 234 TH/s unit at a time, at $2,155 for the 228 TH/s bin.
Walk away if
- You are planning past 2028 at 6¢. Its line there is $22.32 a petahash a day, and today's hashprice halved sits just under that, so those years lean on bitcoin recovering.
- You want the cheapest coin. The S21 XP makes one for about $42,900 and the M70S for about $42,900, against this machine's $49,200.
- Your power is between 6¢ and 8¢ and you want room above the line. At 8¢ its line is $29.76 a petahash a day, above the $27.74 low of last June; above 8¢, choose a more efficient machine.
- You want a long public failure record. We found no operator reports of the M60S++ that we could cite, so we score that as unknown.
What MicroBT shipped
MicroBT unveiled the M6XS++ series on 9 December 2024 at the Bitcoin MENA conference in Abu Dhabi, with the same 15.5 J/TH figure across three cooling types. The M60S++ is the air-cooled one, announced at up to 226 TH/s. Its water-cooled sibling is the M63S++.
MicroBT's own shop page lists it at 218 TH/s from 3,379 W, 15.5 J/TH, in a case 430 mm long, 155 mm wide and 226 mm tall that weighs 13.5 kg. It runs on 220 to 240 V through an IEC C19 cable rated for at least 16 A. Our store lists bins from 202 to 234 TH/s at 15 to 15.5 J/TH, and the figures in this review are the 228 TH/s bin at 3,534 W, which is our store record.
It is the third step of a line. The M60S ran at 18.5 J/TH, the M60S+ at 17, and the M60S++ at 15.5: the same case and the same idea, with more hashrate for each watt. Two years with the M60S shows what the first step of that line has done.
An air-cooled box needs cool air
Air cooling is the simple end of the cooling spectrum: fans move room air through the machine and out the back, and the hall does the rest. There is no loop, no coolant and no special rack. That is why a 13.5 kg unit like this one sits on an ordinary shelf. Our guide to air, hydro and immersion sets the three side by side.
The catch is the air itself. MicroBT lists a working temperature of -5 °C to 35 °C, and the repair guides say the same thing from the other direction: D-Central's guide to the M60S family lists hot intake air, above roughly 30 °C, among the causes of a hashboard dropping out. A machine at this efficiency belongs in a hall built for air, with the intake kept cool, and not in a shed.
That is the room we put it in. Our Argentina and Nigeria sites take air-cooled machines, and an air-cooled machine starts in Argentina and makes one move, to Nigeria, when the cheaper rate starts paying better.
Fans, a shelf and cool intake air: no loop, no coolant, no special rack.
Priced like a settled machine
The first price we hold for the 228 TH/s unit, on 24 April 2026, was $9.92 a terahash. It is $2,155 today, $9.45 a terahash, for the same 228 TH/s at the same 15.5 J/TH. In between it has stayed between roughly $9.35 and $10.14 a terahash, which is what a settled price looks like.
Set against the other air-cooled machines we stock, the price per terahash is the whole story. The S21 XP, at 13.5 J/TH, is $11.55 a terahash, and the M70S $12.60. The S21 Pro, at 15 J/TH, is $8.61. The S21+ is $6.72, and the Avalon A15 Pro++, at the same 15.5 J/TH, $9.98. A machine's price per terahash settles to where its efficiency, its maker and its age put it, and the guide to what a miner costs all-in shows what sits on top of the box.
What a coin costs it
At 6¢ in Argentina it makes a bitcoin for about $49,200 of electricity today, against a bitcoin price of $83,440. At Nigeria's 3.9¢ the same machine makes one for about $32,000. The S21 XP makes one in Argentina for about $42,900, the M70S for about $42,900, the S21 Pro for about $47,600 and the S21+ for about $52,400.
In its first year the M60S++ returns about 35%. The S21 XP returns 37%, the S21 Pro 40% and the S21+ 40%. A lower price per terahash buys more hashrate for the money, and in the first year that outweighs a dearer coin. The M60S++ sits in the middle of its class on both measures, which is what 15.5 J/TH at a settled price should do.
Over its run since June 2026, electricity has averaged about $47,600 a coin. That is a short lifetime average; the figure to plan on is today's.
Where the halving puts it
A machine's line is the hashprice at which it stops covering its own power. At 15.5 J/TH a petahash uses 372 kWh a day: $22.32 at 6¢, and $14.51 at Nigeria's 3.9¢. Network hashprice was $39.47 a petahash a day on 11 October on our hashprice chart, so the M60S++ clears the 6¢ line with room. Its line was also below the year's low of $27.74 on 6 June.
The 2028 halving halves the coins a petahash earns. At today's price and difficulty that puts hashprice near $19.73, under the 6¢ line and well above the Nigerian one. That is today's conditions held flat, not a forecast: it is why every projection we publish assumes the old high returns, and the forward figures here do the same.
A 13.5 J/TH machine has a line of $19.44 at 6¢, just under that halved level, which is the case for paying for the S21 XP or the M70S if you plan to stay in Argentina. The M60S++ is a different bet: an Argentina machine now and a Nigeria machine after the halving, with the move made once. The guide to crossing once explains why, and the guide to efficiency and halvings shows where the line sits at every J/TH.
What a fault costs you here
We looked for operator threads and repair write-ups on the M60S++ and found nothing specific to it that we could stand behind. What exists is a repair shop's guide: D-Central says the M60S, M60S+ and M60S++ share the same hashboard design, and lists a loose high-current copper-bar connection as one cause of a board dropping out, alongside loose ribbon cables and a sagging power supply. We treat that as a troubleshooting reference and not as a failure rate, so the M60S++ is scored as unknown on quality control.
What a fault costs is the part that matters. MicroBT's shop page lists a one-year warranty with repair services within its scope, and the warranty does not cover self-directed changes to operating parameters such as overclocking. Hosted with us in Argentina, a repair is billed at the cost of the parts and nothing else, and it is a line item, not a catastrophe.
We found no operator reports of the M60S++ we could cite. We score that as unknown, not as good.
Our two cents
The M60S++ is a sound machine at a settled price. It clears its power at 6¢ today with room, it fits a standard shelf, and the one move it will make, to Nigeria, is where its figures improve most: a coin there costs about $32,000 to make.
If the aim is the most return on the money, the S21 Pro and S21+ show higher first-year returns today, at $8.61 and $6.72 a terahash. If the aim is the cheapest coin, the S21 XP makes one for about $42,900 at the same site. The figure below ranks what beats this machine on cost per coin and then on first-year return, in stock today. A coin that costs less to make is a coin you keep more of.
- MicroBT Whatsminer M74S+ (332 TH/s) — 12 J/TH, In stock, $38,094 of electricity per bitcoin, 35% year one
- MicroBT Whatsminer M73S (560 TH/s) — 13 J/TH, In stock, $41,268 of electricity per bitcoin, 40% year one
- Bitmain Antminer S23 (318 TH/s) — 11 J/TH, Pre-order, $34,919 of electricity per bitcoin, 32% year one
Sources and further reading
- MicroBT Unveils WhatsMiner M6XS++ At Bitcoin MENA 2024 — Apexto Mining, 11 Dec 2024
- MicroBT unveils new line of bitcoin miners — ForkLog, 9 Dec 2024
- WhatsMiner M60S++ — MicroBT shop, 2026
- Whatsminer M60S hashboard not detected — D-Central, Aug 2026
Which machines this covers
- MicroBT Whatsminer M60S++ (228 TH/s)
- MicroBT Whatsminer M60S++ (226 TH/s)
- MicroBT Whatsminer M60S++ (224 TH/s)
- MicroBT Whatsminer M60S++ (222 TH/s)
- MicroBT Whatsminer M60S++ (220 TH/s)
- MicroBT Whatsminer M60S++ (218 TH/s)
- MicroBT Whatsminer M60S++ (216 TH/s)
- MicroBT Whatsminer M60S++ (214 TH/s)
- MicroBT Whatsminer M60S++ (210 TH/s)
- MicroBT Whatsminer M60S++ (206 TH/s)
- MicroBT Whatsminer M60S++ (204 TH/s)
- MicroBT Whatsminer M60S++ (202 TH/s)
- MicroBT Whatsminer M60S++ (230 TH/s)
- MicroBT Whatsminer M60S++ (232 TH/s)
- MicroBT Whatsminer M60S++ (234 TH/s)
Disclosure
Firsthand Bitcoin sells and hosts mining hardware, including this machine. No manufacturer, distributor or affiliate programme paid for or reviewed this page and we take no commission on the links above. Historical figures are computed from daily bitcoin price and network hashprice, each day valued at its own prices. Nothing here is investment advice.