IREN Is Switching Off the Business That Made $578 Million
The miner booked a $638.8 million impairment retiring rigs to clear halls for AI tenants. Its $4 billion contracted run rate is still $3 billion above what is actually operating.
·Tom Chen
KHeavyHash · air-cooled
Bitmain Antminer KS5 Pro
The strongest Kaspa machine in this set. Kaspa difficulty has moved sharply since these miners shipped, so model the downside before committing.
At your electricity rate
$/kWh
Operating profit
-$4.54
per day · 0.00000786 KAS
Break-even electricity
$0.00
per kWh · $0.06 below your rate
Payback period
—
No payback while the machine runs at a loss
Revenue / day$0.00
Electricity / day$4.54
Energy / day75.6 kWh
Revenue assumes a 1% pool fee at the current KAS price and network difficulty, with the machine running continuously. Payback needs a hardware cost, which we do not publish because we have no verified retailer feed — add your own purchase price in the calculator. Your rate is saved in this browser and applies across the site.
Specifications
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer KS5 Pro |
| Algorithm | KHeavyHash |
| Coins | Kaspa |
| Hashrate | 21 TH/s |
| Power | 3,150 W |
| Efficiency | 150.0 W/TH |
| Cooling | Air |
| Type | ASIC |
| Released | 2024 |
| Home suitable | No — noise and power draw |
| Dimensions | 430 × 195.5 × 290 mm |
| Weight | 15.8 kg |
| Operating temperature | 0 to 40 °C |
| Warranty | 180 days |
Data provenance
Manufacturer datasheet as published by retailers; hashrate and power corroborated across multiple sources. Last verified 2026-08-03.
Note: Published sound ratings sit between 75 dB and 76 dB depending on the seller, so we have not given a single figure.
Any field not listed above is one we could not verify for this machine. We would rather leave a row out than publish a figure you cannot check. Where published sources disagree, we say so instead of picking one. How we verify specifications.
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