Bitmain
Antminer S21
- Algorithm
- SHA-256
- Hashrate
- 200 TH/s
- Power
- 3,500 W
- Power / hashrate
- 17.5 W per TH/s
Status: current
Specifications observed . Source
Hardware · sourced specs
ASIC miners, decoded.
Compare real published specifications. See how hashrate and power combine into efficiency, then filter to what fits your site.
- 3
- Machines in catalogue
- 2
- Current models
- 2
- Manufacturers
- KHeavyHash, SHA-256
- Algorithms
- Sep 2026
- Specs last checked
Hardware catalogue
3 miners shown
Hardware results
IceRiver
KS5L
- Algorithm
- KHeavyHash
- Hashrate
- 12 TH/s
- Power
- 3,400 W
- Power / hashrate
- 283.3 W per TH/s
Status: current
Specifications observed . Source
Bitmain
Antminer S19 Pro
- Algorithm
- SHA-256
- Hashrate
- 110 TH/s
- Power
- 3,250 W
- Power / hashrate
- 29.5 W per TH/s
Status: legacy
Specifications observed . Source
No hardware matches these filters. Clear filters and try again.
| Miner | Algorithm | Hashrate | Power | Power / hashrate | Observed |
|---|---|---|---|---|---|
| Bitmain Antminer S21 | SHA-256 | 200 TH/s | 3,500 W | 17.5 W/TH/s | |
| IceRiver KS5L | KHeavyHash | 12 TH/s | 3,400 W | 283.3 W/TH/s | |
| Bitmain Antminer S19 Pro | SHA-256 | 110 TH/s | 3,250 W | 29.5 W/TH/s |
Reading a spec sheet
What the numbers mean
The same four figures decide most hardware comparisons. Here is how to read them.
- Hashrate
- How many hash attempts a machine makes per second, quoted in MH/s, GH/s, or TH/s depending on the algorithm. Only compare hashrates within the same algorithm.
- Power draw
- Watts drawn at the wall under the manufacturer's stated conditions. Real draw varies with firmware, temperature, and power supply.
- Efficiency
- Power divided by hashrate, for example joules per terahash. Lower is better, and it usually matters more than raw speed once electricity is paid for.
- Status and date
- Current, legacy, or announced, with the date the specifications were observed. Figures can change, so every spec links to its source.