How efficient is the Antminer S19j Pro?

The Antminer S19j Pro runs at 29.5 J/TH — joules per terahash is the number that decides mining profitability. The secondhand-market staple — cheap to buy, needs cheap power.

How much power does the Antminer S19j Pro use?

Typical wall draw is 3,068 W, which at a reference $0.10/kWh costs about $7.36 per day in electricity. Scale linearly to your own rate — the electricity price is the whole business.

Is the Antminer S19j Pro suitable for home mining?

Only with acoustic isolation: at ~75 dB it is data-center loud. Home miners use soundboxes, sheds, or pick a quiet unit like the Avalon Mini 3 or Bitaxe.

Bitmain · 2021

Antminer S19j Pro

The secondhand-market staple — cheap to buy, needs cheap power.

Hashrate104 TH/s

Efficiency29.5 J/TH

Wall power3,068 W

Coolingair

Noise~75 dB

Released2021

Energy $/day @ $0.10/kWh$7.36

The longer story

The S19j Pro was the workhorse of the previous cycle and is now the secondhand market’s staple: abundant, battle-tested, and cheap to acquire. Its economics are a pure function of your power price — at industrial rates it struggles; on cheap or stranded power it still clears margin.

It suits miners with sub-market electricity (hydro surplus, flare gas, home solar arbitrage) and anyone learning fleet operations without flagship capital at risk. Buy from reputable refurbishers; these units have lived hard lives.

Manufacturer site

Quick answers

How efficient is the Antminer S19j Pro?: The Antminer S19j Pro runs at 29.5 J/TH — joules per terahash is the number that decides mining profitability. The secondhand-market staple — cheap to buy, needs cheap power.
How much power does the Antminer S19j Pro use?: Typical wall draw is 3,068 W, which at a reference $0.10/kWh costs about $7.36 per day in electricity. Scale linearly to your own rate — the electricity price is the whole business.
Is the Antminer S19j Pro suitable for home mining?: Only with acoustic isolation: at ~75 dB it is data-center loud. Home miners use soundboxes, sheds, or pick a quiet unit like the Avalon Mini 3 or Bitaxe.

Compare & alternatives

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