Bitmain Antminer KA3 166T Blake2S official reference
Official Antminer KA3 version 240-KA Blake2S reference: 166 TH/s, 3,154 W and 19 J/TH with exact dual-input sequencing, firmware and log-diagnostic boundaries.
Quick answer
The Bitmain Antminer KA3 166T Blake2S official reference is a Kadena miner rated about 166 TH/s at roughly 3,154 W.
Full Specifications
| Model | Bitmain Antminer KA3 166T Blake2S official reference |
|---|---|
| Model Number | Antminer KA3 version 240-KA |
| Manufacturer | Bitmain |
| Algorithm | Kadena |
| Hashrate | 166 TH/s |
| Power Consumption | 3,154 W |
| Efficiency | 19 J/TH |
| Cooling | Air |
| Voltage Range | 200-240 V AC; 47-63 Hz; two required 10 A input wires; 20 A maximum |
| Operating Temperature | 0 C to 40 C |
| Dimensions | 430 x 195.5 x 290 mm |
| Weight | 16.1 kg net |
| Interface | RJ45 Ethernet 10/100M |
| Status | OEM support reference |
Definitive OEM reference: Antminer KA3 version 240-KA is a Blake2S miner. Its exact manufacturer-supported lane is 166 TH/s. Hashrate and efficiency below are scoped only to Blake2S and must not be compared across algorithms.
| OEM identity | Algorithm | Hashrate | Wall power at 25°C | Wall efficiency at 25°C |
|---|---|---|---|---|
| KA3 / version 240-KA | Blake2S | 166 TH/s ±3% | 3,154 W ±10% | 19.0 J/TH ±10%, on Blake2S |
Contained 173 TH/s record
Do not use the existing 173 TH/s record as a specification source. The exact primary Bitmain evidence reviewed here does not establish the circulated 173 TH/s or 3,287 W lane. It is not added to the canonical matrix. Confirm version 240-KA and the complete physical nameplate before installation, firmware, or repair work; do not infer a manufacturer bin from observed hashrate.
Mandatory dual-input electrical preflight
| Integrated PSU family | APW12 is part of the KA3 server; exact APW12 sub-model is unresolved in the reviewed KA3 sources |
|---|---|
| AC input voltage | 200–240 V AC |
| AC input frequency | 47–63 Hz |
| Maximum input current | 20 A under the stated maximum condition: 40°C and 0 m altitude |
| Input arrangement | Two AC inputs; two input wires at 10 A each |
| Power cords | Two additional cords are required; exact cord and connector types are unresolved |
| Network | RJ45 Ethernet 10/100M |
Both power inputs must be connected simultaneously for the KA3 to operate normally. When powering the server off, power off all inputs. Wrong input voltage can damage the server. The equipment must connect to an earthed mains socket-outlet installed near it and readily accessible.
This is high-power equipment requiring a qualified installation. Verify version 240-KA and the exact APW12, inlet, cord, and connector labels; both input paths; supply voltage and frequency; circuit capacity; continuous-load treatment; protection; conductors; disconnecting means; grounding; and applicable requirements before energizing it. An APW12 family name does not establish sub-model, cord, connector, or cross-model interchangeability.
Cooling, physical, and environmental boundaries
| Fans | 4 × 12038; front and rear 6,000 RPM; 12 V / 2.7 A; 320 CFM mid airflow |
|---|---|
| Server dimensions | 430 × 195.5 × 290 mm, including PSU |
| Packaged dimensions | 570 × 316 × 430 mm |
| Net weight | 16.1 kg, including PSU |
| Gross weight | 17.7 kg |
| Operating temperature | 0–40°C |
| Storage temperature | -20–70°C |
| Operating humidity | 10–90% RH, non-condensing |
| Operating altitude | Up to 2,000 m |
From 900 m to 2,000 m, reduce the highest permitted operating temperature by 1°C for every 300 m increase in altitude. The reviewed KA3 specification, manual, and fan table do not publish a sound level; no noise value is asserted.
Firmware, logs, diagnostics, and repair
- Photograph the complete miner, APW12, both inlets, cords, connectors, and installed-board labels; record version 240-KA, serial, every revision, and the current firmware version.
- Use Bitmain’s official firmware selector; select KA3 and the exact installed revision, then read the complete package description.
- Use the official KA3 support hub and KA3 Server Manual for exact setup, reset, firmware, operating, and support routes.
- Keep the KA3 powered throughout a firmware upgrade. Bitmain warns that loss of power before completion may require returning the server for repair.
- Use Bitmain’s exact KA3 log-diagnosis guide for power, fan, dropped-board, high-temperature, and pool anomalies.
- For broader power, zero-hashrate, temperature, firmware, control-board, or hashboard-signal symptoms, start with Bitmain’s ANTMINER failure diagnostic guide. Do not flash unrelated firmware or swap parts solely because another model presents a similar symptom.
- Use the ASIC fault finder to organize symptoms, logs, and the next diagnostic step.
- Request ASIC repair diagnosis with exact miner, PSU, inlet, cord, connector, and installed-board labels; photographs; logs; symptoms; and prior firmware actions.
Evidence boundaries: no supported 173 TH/s or 3,287 W lane; sound level; KA3 sub-model; cord or connector type; exact APW12 sub-model; ASIC identity/count; fabrication process; control-board identity; undocumented board architecture; tuning range; residential suitability; heat-reuse recommendation; profitability or other economics; release date; or cross-model firmware, control-board, hashboard, PSU, cord, connector, fan, enclosure, or parts compatibility is asserted. No cross-algorithm comparison is made.
Primary sources: Bitmain’s KA3 specification, KA3 Server Manual, fan table, and official firmware, support, log-diagnosis, and generic diagnostic records linked above. Reviewed August 28, 2026.