MicroBT Whatsminer M21 vs MicroBT WhatsMiner M76
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21 | Specification | MicroBT WhatsMiner M76 |
|---|---|---|
| 31.0 TH/s | Hashrate | 354.0 TH/s |
| 1,860 W | Power Consumption | 5,133 W |
| 60.0 J/TH | Efficiency | 14.5 J/TH |
| — | Noise Level | 75 dB |
| 7,150.0 kg | Weight | 18.0 kg |
| 6,346 BTU/hr | BTU Output | 17,514 BTU/hr |
| 28/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21
MicroBT WhatsMiner M76
Based on BTC price of $79,227 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the MicroBT WhatsMiner M76 edges it: 4 of 5 factors go its way (efficiency, hashrate, home mining score, noise level). The standout gap is 1042% more hashrate (31.0 vs 354.0 TH/s) in the MicroBT WhatsMiner M76's favour. The MicroBT Whatsminer M21 holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the MicroBT Whatsminer M21 and MicroBT WhatsMiner M76 actually differ, with the gap quantified:
- MicroBT WhatsMiner M76 1042% more hashrate (31.0 vs 354.0 TH/s)
- MicroBT Whatsminer M21 64% better power draw (1,860 vs 5,133 W)
- MicroBT WhatsMiner M76 76% better efficiency (60.0 vs 14.5 J/TH)
- MicroBT WhatsMiner M76 100% better weight (7,150.0 vs 18.0 kg)
- MicroBT WhatsMiner M76 176% more heat output (6,346 vs 17,514 BTU/hr)
- MicroBT WhatsMiner M76 7% more home mining score (28.0 vs 30.0)
Best For...
Best for Profitability
MicroBT WhatsMiner M76$4.29/day higher profit at current rates.
Best for Home Mining
MicroBT WhatsMiner M76Score: 30/100. 75 dB noise level.
Best for Efficiency
MicroBT WhatsMiner M7614.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the MicroBT Whatsminer M21 or the MicroBT WhatsMiner M76?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M76 is more profitable at $0.99/day compared to $-3.30/day for the MicroBT Whatsminer M21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the MicroBT Whatsminer M21 or MicroBT WhatsMiner M76?
The MicroBT WhatsMiner M76 is quieter at 75 dB compared to the MicroBT Whatsminer M21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the MicroBT Whatsminer M21 or the MicroBT WhatsMiner M76?
The MicroBT WhatsMiner M76 scores 30/100 on our Home Mining Score (vs 28/100 for the MicroBT Whatsminer M21). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
MicroBT Whatsminer M21 vs MicroBT WhatsMiner M76: how much does the efficiency gap matter?
The MicroBT Whatsminer M21 runs at 60.0 J/TH while the MicroBT WhatsMiner M76 runs at 14.5 J/TH — a difference of 45.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 76% better efficiency (60.0 vs 14.5 J/TH).