Quick answer
The Antminer T19 (Bitmain, 2020) delivers about 84 TH/s at roughly 3,150W, an efficiency near 37.5 J/TH on the 7nm BM1398 chip. It is the budget tier of the S19 generation — cheaper than the S19 but a little thirstier, so best on low-cost power or as heat.
Verdict: a reliable, value-tier S19-era miner — good used on cheap power, but a 240V, ~75 dB machine.
For the full canonical specification sheet, see our Antminer T19 specs guide. This review covers the practical side: what the T19 is, how it compares to the S19, and where it fits in 2026.
The Antminer T19 is the budget member of Bitmain’s S19 generation, released in 2020. It uses the same reliable 7nm BM1398 platform as the S19 but with chips binned for a lower price rather than peak efficiency. That makes it a sensible secondary-market pick when purchase price matters more than running cost.
Antminer T19 specifications
- Hashrate: ~84 TH/s (±3%; an ~88 TH/s revision also shipped)
- Power consumption: ~3,150W at the wall (stock)
- Efficiency: ~37.5 J/TH
- ASIC chip: BM1398, 7nm
- Algorithm: SHA-256
- Cooling: dual fans
- Noise: ~75 dB
- Released: 2020
Architecture: T19 vs S19
The T19 shares the 7nm BM1398 chip and the same reliable control-board platform as the base S19. The difference is binning and configuration: the T-series runs chips below the S-series efficiency threshold, so the T19 lands at ~37.5 J/TH versus the S19’s ~34 J/TH. Voltage is regulated per power domain on each board, not per individual chip. In day-to-day reliability the T19 behaves much like the S19, which is one of the more dependable modern Antminer generations.
Efficiency and real-world performance
At ~37.5 J/TH the T19 is reasonably close to the base S19 and well ahead of the S17 generation, but a modern S21 is roughly twice as efficient per terahash. As with every legacy miner its economics turn on electricity price: on cheap power it can still earn, and its ~3.1kW of heat is substantial. Undervolting and underclocking with custom firmware are the standard way to improve efficiency at a modest hashrate cost.
Power and home use
At ~3,150W the T19 needs a dedicated 240V circuit — the class of outlet used for a dryer or EV charger — not a standard 120V household receptacle. At ~75 dB it is loud, suited to a garage, dedicated room, or ventilated hashcenter. For quiet Bitcoin mining at home on a normal outlet, the Bitaxe is the right tool. A T19 is also a powerful heater that mines while it warms a space.
Firmware and tuning
Custom firmware lets you undervolt and autotune a T19. The ecosystem stands on the shoulders of those who built it first — Braiins pioneered ASIC autotuning and native Stratum V2, Luxor brought fast curtailment, and the community reverse-engineered the BM1398. Autotuners calculate frequency and voltage per domain at runtime; they are not fixed presets. See our firmware comparison for details. D-Central is also building DCENT_OS, our own GPL-3.0 firmware — closed beta now, public beta targeted for summer 2026, experimental and waitlist-only.
Buying, refurb, and repair
D-Central has run a Bitcoin mining repair bench since 2016, and the S19/T19 platform is among the most serviceable modern Antminers. Failures usually isolate to a single hashboard or the control board, both repairable; the C52 control board and S19-series hashboards are stocked. Check our transparent ASIC repair pricing, and see tested T19 units. Refurbished hardware carries D-Central’s own warranty; new units carry the manufacturer’s; returns are DOA/defect-only. We build to order, so lead times are estimates, not promises.
FAQ
What are the Antminer T19 specifications?
About 84 TH/s at roughly 3,150W (~37.5 J/TH), using the 7nm BM1398 chip on the SHA-256 algorithm. It was released by Bitmain in 2020, with a later ~88 TH/s revision.
What is the difference between the T19 and the S19?
Both use the same 7nm BM1398 chip and platform. The S19 is the efficiency model (~95 TH/s at ~34 J/TH); the T19 is the budget model (~84 TH/s at ~37.5 J/TH), running chips binned below the S-series threshold. The T19 costs less to buy but slightly more to run.
Is the Antminer T19 worth it in 2026?
On cheap power, yes — it is reliable and cheaper to buy than the S19. On grid-rate power it is realistically a heater that earns a little. A modern S21 is far more efficient but costs much more.
Can I run an Antminer T19 at home?
It needs a dedicated 240V circuit and is loud at ~75 dB, so it belongs in a garage, dedicated room, or ventilated hashcenter. For quiet home Bitcoin mining on a normal outlet, a Bitaxe is the better fit.
Last reviewed and fact-checked: June 2026 — D-Central. Specifications cross-checked against manufacturer data and our own repair-bench experience.
