Technical Specifications
| Hashrate | 120 TH/s |
|---|---|
| Power Consumption | 2,760 W |
| Efficiency | 23 J/TH |
| Algorithm | SHA-256 |
| Mineable Coins | Bitcoin , Bitcoin Cash |
| Noise Level | 75 dB(A) |
| Cooling | Air — 4 fans |
| Dimensions | 400 × 195 × 290 mm |
| Weight | 13.2 kg |
| Release | 2023-Q2 |
| Approx. Price | ~$1,400 USD |
Mining Profitability in 2026
The Bitmain Antminer S19k Pro can be pointed at different algorithms and coins. Use our individual coin calculators with the hashrates listed in the table above:
Break-even tip: Enter the approximate price of this unit (~$1,400) in the hardware cost field of the calculator to see your estimated days-to-break-even based on current network conditions.
Pros & Cons
Pros
- Lower acquisition cost (~$1,200–$1,600 on secondary market)
- Moderate power draw (2,760 W) — slightly easier infrastructure
- Widely available on secondary market globally
Cons
- Less efficient than S21 series (23 vs 15–17.5 J/TH)
- Thinner profitability margins at higher electricity rates
- Approaching end of competitiveness as newer models dominate
Frequently Asked Questions
Is the Antminer S19k Pro still profitable in 2026?
At electricity rates below $0.06/kWh, the S19k Pro can remain profitable in 2026 — especially when purchased at a discounted secondary-market price. Its 23 J/TH efficiency is materially worse than the S21 Pro's 15 J/TH, meaning margins are thinner. Use our Bitcoin mining calculator with 120 TH/s and 2,760 W to check profitability at your current rate.
How does the S19k Pro compare to the S21?
The S21 delivers 200 TH/s at 17.5 J/TH versus the S19k Pro's 120 TH/s at 23 J/TH — a significant hashrate and efficiency gap. The S19k Pro's advantage is lower acquisition cost. For miners with access to very cheap electricity and tight capital budgets, the S19k Pro can still make sense; for everyone else, the S21 offers better long-term economics.
What is the best firmware for the Antminer S19k Pro?
The S19k Pro supports BOS+ (Braiins OS+), which typically improves efficiency 5–10% through per-chip autotuning. The 2% dev fee on BOS+ is generally recouped through efficiency gains. Bitmain's stock firmware is stable and includes auto-tune mode. For maximum return, BOS+ is recommended on any unit running more than 6 hours per day.
Can the S19k Pro be used at home?
Like most ASICs, the S19k Pro produces 75 dB noise and requires a dedicated 220 V circuit. Its 2,760 W heat output is substantial. Home use is technically possible in a garage or basement with proper ventilation, but the continuous noise and heat make residential deployment impractical without dedicated soundproofing and exhaust infrastructure.
Where to Buy
The Bitmain Antminer S19k Pro is available from:
- Bitmain Official Shop — shop.bitmain.com (new units, with warranty)
- MinerBros — authorised reseller, ships globally
- Kaboomracks — US-based reseller, new and refurbished
- eBay / secondary market — used units, verify hashrate stability before purchasing
Price estimates on this page are approximate and subject to market fluctuations. Always compare prices from multiple sellers before purchasing.
Compare the Bitmain Antminer S19k Pro
See how the Bitmain Antminer S19k Pro stacks up against other miners that can mine the same coins — hashrate, power draw, efficiency, and profitability side by side: