There is one thing you need to know before you read anything else about Auradine, and almost no other page will tell you: the company rebranded to Velaura AI in March 2026 and is winding down its Bitcoin mining hardware business. Its CSO confirmed it will sell through existing Teraflux inventory while honouring warranties, then redeploy whatever is left into its own mining operations.
That is not a reason to dismiss the hardware — it is the reason these machines are available at retail at all, and it is material information any buyer deserves before spending five figures. This guide covers the full Teraflux range, verified specifications, honest profitability maths, and exactly where Auradine sits against Bitmain and MicroBT.
Who Auradine is, and why anyone cared
Auradine was founded in Santa Clara, California in 2022 by Rajiv Khemani (previously COO at Cavium, founder of Innovium) and Barun Kar. It raised a $153M Series C in April 2025 led by StepStone Group, with participation from Samsung Catalyst Fund, Qualcomm Ventures, Premji Invest and MARA Holdings, taking total funding past $300M. By mid-2025 its 3nm Teraflux machines were deployed at more than 40 Bitcoin data-centre operators.
The pitch was supply-chain sovereignty. Auradine described itself as the only US company producing American-engineered Bitcoin miners, with IP developed and final assembly performed in the United States, against Bitmain's 80%-plus share of the global market.
Be clear about what that's worth to a European buyer. US assembly primarily de-risks US tariff exposure. For a UK or EU purchaser the genuine benefits are narrower: diversification away from a single Chinese supplier, less exposure to the US–China customs seizures that have repeatedly stranded Antminer shipments in transit, and English-language support in a Western timezone. It does not reduce your import duty or VAT. Anyone telling you otherwise is selling.
Decoding the Teraflux range: AT, AH and AI
The prefix tells you the cooling method, and that is the only part of the name that carries meaning:
| Prefix | Cooling | Model |
|---|---|---|
| AT | Air-cooled | Teraflux AT2880 |
| AH | Hydro / liquid-cooled | Teraflux AH3880 |
| AI | Immersion-cooled | Teraflux AI3680 |
The four-digit number is an internal designation. It does not encode hashrate, wattage or generation, and anyone who tells you it does is guessing.
What matters far more than the model number is the operating mode. Every Teraflux ships with Eco, Mid and Turbo profiles, and vendors quote whichever figure flatters the machine. A "16 J/TH" AT2880 and an "18 J/TH" AT2880 are the same box in different modes. Always ask which mode a quoted efficiency refers to.
Full Teraflux specifications
Manufacturer specifications, cross-checked against ASIC Miner Value. All are 3nm parts.
| Model | Cooling | Turbo | Eco / Normal | Noise | Released |
|---|---|---|---|---|---|
| Teraflux AT2880 | Air | 260 Th/s @ 4,680 W = 18 J/TH | 16 J/TH | 70 dB | Nov 2024 |
| Teraflux AI3680 | Immersion | 360 Th/s @ 6,840 W = 19 J/TH | 16 J/TH | — | Dec 2024 |
| Teraflux AH3880 | Hydro | 600 Th/s @ 10,740 W = 17.9 J/TH | 400 Th/s @ 14.8 J/TH | 35 dB | Mar 2025 |
| Third generation (announced) | Hydro | up to 900 Th/s @ 11 J/TH | 9.8 J/TH | — | Sampling 2026 |
The AH3880 is a 2U unit, 350 × 200 × 100 mm and 15.5 kg, running a 1 litre coolant loop at 5–20 L/min. The Teraflux ASIC itself is an 8 × 8 mm 3nm die delivering 0.87 Th/s at 12 W.
Auradine Teraflux AT2880 (260 Th/s)
The AT2880 delivers up to 260 Th/s at 4,680 W in Turbo mode — 18 J/TH — or 16 J/TH in Normal mode. It runs at 70 dB across a 5–45 °C range.
An honest assessment: this machine is not competitive on economics in 2026. At 18 J/TH it sits in a 2024 efficiency tier while current flagships run at 9.5–13 J/TH. There is no electricity price at which it out-earns an Antminer S23 or a WhatsMiner M7-series machine on return. Buy it for supply-chain reasons — a mandate to avoid Chinese hardware, or standardisation on Auradine firmware — not because the numbers favour it. If economics are your priority, the Bitmain range or WhatsMiner line-up will serve you better.
The 600 Th/s liquid-cooled unit
Our second Auradine listing is a 600 Th/s liquid-cooled machine quoted at 5,880 W and 9.8 J/TH. That figure needs a caveat, and we would rather give it than let you discover it later.
The verified AH3880 delivers 600 Th/s at 10,740 W — 17.9 J/TH — not 9.8. The 9.8 J/TH figure belongs to Auradine's third-generation hardware announced in November 2025, whose hydro variant is rated up to 900 Th/s with 9.8 J/TH as its eco-mode number. A 600 Th/s unit at 5,880 W is arithmetically consistent with a third-generation hydro machine running in eco mode, but no independent source confirms a shipping SKU at exactly those figures.
The difference is not academic. At 9.8 J/TH the machine nets $12.25/day at $0.05/kWh and pays back in about 3.1 years. At 17.9 J/TH it nets $6.42/day and takes 5.9 years. Confirm the exact model and operating mode with us before ordering — we would rather lose a sale than have you buy the wrong assumption.
Profitability and break-even
Based on early-August 2026 conditions: Bitcoin around $64,120, network hashrate 932 EH/s, difficulty 126.23 T, and hashprice $32.10 per PH/s per day. Note that hashprice touched a five-year low of $27.67 in June 2026 and the six-month forward curve sits at $30.83 — the market does not expect near-term relief.
Teraflux AT2880 — 260 Th/s, $12,122. Revenue roughly $8.37/day.
| Power price | Electricity/day | Profit/day | Payback |
|---|---|---|---|
| $0.02/kWh (hosted) | $2.25 | +$6.12 | ~5.4 years |
| $0.05/kWh | $5.62 | +$2.75 | ~12.1 years |
| $0.10/kWh | $11.23 | −$2.87 | Never |
Break-even electricity: $0.0745/kWh in Turbo, improving to $0.0838/kWh in Normal mode.
600 Th/s liquid unit — $13,900. Revenue roughly $19.31/day. As listed at 5,880 W it nets +$16.49/day at $0.02/kWh (payback ~2.3 years) and remains positive at $0.10/kWh, with a break-even of $0.1368/kWh. If it is in fact an AH3880 at 10,740 W, break-even falls to $0.0749/kWh and it loses money at $0.10.
Model your own case on the mining calculator.
How Teraflux compares to Bitmain and MicroBT
| Machine | Th/s | J/TH | $/TH | Payback @ $0.05/kWh |
|---|---|---|---|---|
| Auradine AT2880 | 260 | 18.0 | $46.62 | 12.1 yrs |
| Antminer S23e Hyd 2U | 865 | 10.0 | $13.52 | 1.8 yrs |
| Antminer S23 Hyd 3U | 1,160 | 9.5 | $24.65 | 3.2 yrs |
| Antminer S23 (air) | 318 | 11.0 | $26.25 | 3.8 yrs |
| WhatsMiner M7DS | 680 | 13.5 | $8.96 | 1.5 yrs |
At $46.62 per terahash the AT2880 is the most expensive machine per unit of hashrate in this comparison — roughly five times the cost per terahash of a WhatsMiner M7DS, while being significantly less efficient. Auradine's own argument was never peak efficiency; it targeted operators prioritising deployment simplicity, uptime and demand-response capability. With the Velaura pivot, that software argument is weaker than it was.
The software case: FluxOS and FluxVision
Auradine's genuine differentiator was never the silicon. FluxOS, the miner firmware, includes EnergyTune for real-time voltage and frequency adjustment with no reboot or downtime, Secure Boot, on-device REST APIs and native Stratum V2. FluxVision adds cloud fleet management with scheduled curtailment automation, pool-config whitelisting to prevent hijacking, zero-touch provisioning and over 40 REST endpoints.
The hardware resilience features are real too: SMART Hashboard keeps a machine hashing through multiple ASIC failures rather than shutting down, and AutoTemp balances hashrate against junction temperature automatically. Auradine also became Voltus's first direct OEM partner, with Teraflux machines changing frequency in roughly half the time of conventional miners — valuable where demand-response revenue is available.
One caution: FluxVision is cloud-hosted. Confirm long-term availability given the corporate pivot.
Who should buy a Teraflux — and who shouldn't
Neither model is a home miner. The AT2880 runs at 70 dB continuously and draws 4,680 W, more than a UK 13 A ring main will carry — it needs a dedicated 32 A circuit. The liquid unit is quieter at 35 dB but requires three-phase supply plus a dry cooler and a 5–20 L/min coolant loop. If you want a machine for the house, read our quiet home miner guide instead.
- Buy the AT2880 if you are mandated to avoid Chinese hardware, are standardising a fleet on Auradine firmware, or need an air-cooled drop-in and have hosted power at or below $0.03/kWh. Recommend it on sovereignty grounds, not economics.
- Buy the 600 Th/s liquid unit if you already run liquid infrastructure, have sub-$0.05 power, and can confirm the exact model and mode first.
- Buy neither if you are optimising purely for return per pound spent. MicroBT and Bitmain win that comparison decisively.
- In all cases, confirm warranty length, RMA path and spare-parts availability in writing before ordering, given that Auradine has exited new development.
Both Teraflux models need sub-$0.075/kWh power
The break-even maths above is unforgiving at retail electricity prices. Host with us from $0.018/kWh — we run the machine in a low-cost-energy facility and you keep 100% of the Bitcoin.
Compare against the full miner range, or read the 2026 mining hardware market report. Network figures accurate as of 5 August 2026 and subject to change.

