Every number on this page comes straight from the spec sheet of a machine we stock and ship. Two charts decide the argument: how many joules each machine burns per terahash, and how many dollars it costs to buy each terahash. Then the full spec table for every unit, so you can check our work.
Efficiency · joules per terahash
Lower is better. This is what your power bill cares about.
Computed from each product page: watts at the wall divided by hashrate. The B30 range reflects its published 360 to 450W draw.
Price per terahash · dollars
Lower is better. This is what your wallet cares about on day one.
Computed from live store pricing divided by rated hashrate. Prices in USD as of September 2026.
The Ranking
Why the BM1373 changed home mining in 2026
Four of the five machines on this page are built on Bitmain's new BM1373. For years, home miners ran a chip generation or two behind the industrial farms. This chip closed the gap: the B30 runs it at 12 to 15 joules per terahash out of the box, and tuners have pushed single chip boards under 11, which is flagship territory. That is why 2026 is the first year a machine on your desk plays in the same efficiency league as a warehouse.
We did not rank these machines from spec sheets alone. We went to China and sat down with the manufacturers who build them, on the factory floor, to see how the new chips are tuned, cooled, and assembled, and where the next generation can improve. The Harlo crew documents those visits on camera: the boards, the thermal design decisions, the conversations with the engineers. Getting our hands dirty at the source is how machines like the B30 end up on this list.
Watch the factory visits on Harlo Labs →
All five, side by side
| RANK | MINER | HASHRATE | WALL | J/TH | $/TH | NOISE | PRICE |
|---|---|---|---|---|---|---|---|
| #1 | Bitfortun BS-2 | 10 TH/s | 150W | 15 | $36 | ~45 dB | $360 |
| #2 | Harlo B30 | 30 TH/s | 360 to 450W | 12 to 15 | $27 | ~50 dB | $799 |
| #3 | Magic Miner 40T | 40 TH/s | ~650W at 40 TH/s | 16.3 | $20 | ~50 dB | $799 |
| #4 | Bitfortun BS-1 | 5.5 TH/s | 95W | 17.3 | $42 | ~45 dB | $229 |
| #5 | Hammer Miner BC04 | 6 TH/s | ~100W | 16.7 | $40 | ~50 dB | $239 |
Home mining at these hashrates is a lottery, not an income. A machine in this class finds a solo block very rarely, on the order of one chance in a million on any given day. Buy the machine because you want to run one, not because of what it might find. No earnings are promised or implied.
Five machines, smallest to biggest. Each one wins a different thing, and two of them are between batches right now, which the cards below will tell you honestly. Prices and stock read live from our store.
Bitfortun BS-1 (5.1TH/s)
- Hashrate5.1 TH/s
- Power95 W
- Per TH$45
- Noise45 dB
About 45 dB and 5.1 TH/s on a single chip, water cooled rather than just fanned. One of the two quietest machines on this list.
Skip it if you need it now. It is between batches.
Bitfortun BS-2 (8.5TH/s)
- Hashrate8.5 TH/s
- Power150 W
- Per TH$42
- Noise45 dB
The same 45 dB and the same closed loop cooling as the BS-1, with 8.5 TH/s instead of 5.1 because it runs two chips rather than one.
Skip it if you need it now. It is also between batches.
Hammer Miner BC04 (6TH/s)
- Hashrate6.0 TH/s
- Power100 W
- Per TH$42
- Noise50 dB
Six terahash for $239 at 16.7 J/TH, which is better efficiency than either Bitfortun above it. The one on this list you can actually have this week.
Skip it if noise matters. At about 50 dB it is not a desk machine.
Harlo B30
- Hashrate30.0 TH/s
- Power485 W
- Per TH$30
- Noise50 dB
13.5 J/TH, the least electricity per unit of work of anything on this list. If a machine is going to run all day every day, this is the number that decides what it costs you over a year.
Skip it if you want the most hashrate for the money. It costs more than the 40T below and does less work.
Magic Miner 40T
- Hashrate40.0 TH/s
- Power650 W
- Per TH$20
- Noise50 dB
About $20 per TH/s, the cheapest work on this list by a third, with forty terahash and the power supply already inside the tower.
Skip it if you are tight on space or breaker headroom. It draws 650 W and it is a full tower.
Prices, specs and stock are read live from our store as this page loads, so they are what we are charging today, not what we typed when we wrote this.
1 comment
Will the magic miner 40t throw the most heat out of the 3 or 4 newer heater models aka harlo, k box etc ?? Which throws the most heat whats comparison of magic miner 40t heater output compared to a avalon q i already have from yall. Im looking for the best price heater miner the q throws a good ammount of heat hoping the magic miner 40t does as well