- Tether introduces high-density modular Bitcoin mining systems co-designed with Canaan and ACME Swisstech.
- The architecture separates computing, power supply and housing, enabling flexible upgrades and granular thermal management.
- Custom hash board modules from Canaan target large-scale, immersion-cooled mining facilities with lower operational complexity.
- The move extends Tether’s open-source mining strategy from software to hardware, aiming for tighter control over costs and performance.
In a bid to rethink how large industrial mining sites are built and run, Tether has rolled out a new generation of custom Bitcoin (BTC) mining systems designed around modular, high-density computing units. Developed together with ASIC manufacturer Canaan and Swiss engineering firm ACME Swisstech, the infrastructure focuses on squeezing more efficiency and flexibility out of every watt and every rack of hardware.
Rather than relying on traditional, fully assembled mining rigs, the company is introducing an approach that breaks the hardware stack into specialized hash board modules that plug into Tether’s own control, cooling and software environment. The goal is to give operators more granular control over performance, energy use and maintenance cycles, at a time when competitive pressure and rising operating costs are reshaping the economics of Bitcoin mining.
Tether’s high‑density modular mining concept
According to Tether, the new infrastructure centres on high-density mining systems that are built from dedicated hash board modules, instead of monolithic all-in-one machines. These modules tie directly into Tether’s existing thermal management setups and its software stack, forming self-contained mining units that can be monitored and tuned at a very detailed level.
The company explained that this shift away from off-the-shelf, preassembled rigs is meant to reduce dependence on fixed, sealed hardware designs. By standardizing around modular hash boards, operators can ramp up capacity, swap out components and refine cooling strategies without having to discard entire machines whenever a single element becomes obsolete or fails.
Under this architecture, the overall mining system is restructured so that compute, power delivery and enclosure are treated as separate building blocks. Each block can be optimized independently, which is very different from traditional miners where all three elements are tightly bundled in a single chassis and tuned as one unit.
The design is purpose-built for immersion cooling deployments, where mining hardware is submerged in a specialized fluid to dissipate heat more efficiently. Tether notes that immersion-oriented layouts allow energy overhead to be reduced, while simultaneously improving performance per square meter in dense data-centre environments.
At the same time, Tether says it is working on additional cooling options beyond immersion systems, so that the same modular framework can be adapted to locations where full immersion setups may not be practical. That added flexibility is intended to make the infrastructure relevant across a wider range of climates, regulatory regimes and cost structures.
How the modular structure changes mining operations
One of the biggest promises of the new platform is the ability for operators to swap or upgrade individual parts of the mining system instead of decommissioning entire racks. If compute requirements change, hash boards can be replaced; if electrical conditions or regulations shift, power components can be redesigned without touching the compute layer.
Tether highlights that this approach allows the hash rate output to be dynamically adjusted in response to real-time conditions, such as changes in electricity prices, local grid constraints, or shifts in network difficulty. Instead of treating each miner as an isolated box, the infrastructure behaves more like a coordinated fleet of modular resources that can be tuned site-wide.
The separation of compute, power and housing also helps dismantle some of the infrastructure fragmentation that has historically plagued large mining farms. In many existing facilities, thousands of sealed units run side by side with limited coordination, making it hard to optimize heat removal or power distribution beyond basic facility-level tweaks.
With Tether’s model, the collective system can be orchestrated more holistically. Hash board density, power draw and cooling capacity can be balanced against each other, which in theory should lead to better uptime, smoother scaling and more predictable maintenance windows. Incremental expansion becomes easier: operators can add modules in phases instead of bringing in entire waves of new machines.
The new hardware is also closely tied into Tether’s software stack for monitoring and control. By fusing modular physical components with their own operating tools, the company aims to reduce the gap between what can be seen in dashboards and what can actually be reconfigured in the racks, down to the level of individual hash boards.
Role of Canaan’s custom hash board modules
On the hardware design side, Canaan plays a central role by supplying customized hash board modules built around its latest-generation ASIC chips. These modules, sometimes referred to within Canaan’s broader Avalon platform, are engineered to slot seamlessly into systems designed by partners rather than only into the company’s own branded miners.
The collaboration between Tether, Canaan and ACME Swisstech is not starting from scratch. It follows a proof-of-concept R&D project completed in 2025, where the three firms co-developed and validated the underlying modular architecture that has now moved into the production phase. During that earlier effort, Canaan provided the hash board technology and helped Tether design custom control boards and mining management systems.
Together, those elements form autonomous mining units with direct system-level integration, rather than loosely connected collections of standalone miners. In this setup, the compute layer can be scaled up or down by adding or removing boards, while power and cooling infrastructure can evolve in parallel.
Canaan’s CEO, Nangeng Zhang, has pointed out that demand is increasingly shifting toward hardware that can be embedded directly into partner-designed systems, especially in the context of immersion-cooled facilities. Instead of buying generic miners and retrofitting them into immersion tanks, large operators want components made from the ground up for those environments.
He also emphasized that Canaan is leveraging its long-standing experience in ASIC engineering and a flexible development platform to offer tailored hash board solutions. These boards are meant to give partners more freedom to structure their overall systems at the component level, fine-tuning layout, density and heat dissipation according to local constraints.
ACME Swisstech and the industrial co‑design focus
ACME Swisstech, a Swiss firm specializing in large-scale project management and industrial system design, contributes the mechanical and infrastructural co-design expertise needed to turn modular components into full, field-ready installations. Its involvement is geared toward mining sites that operate more like industrial plants than hobbyist setups.
Giv Zanganeh, president of ACME Swisstech, describes the three-way collaboration as an opportunity to move away from plug-and-play products aimed at the retail market and toward integrated solutions aligned with the realities of large data-centre operations. Rather than shipping generic rigs that customers must adapt, the partners aim to deliver systems conceived from the outset for industrial deployments.
This co-design process looks not only at hash boards and power units, but also at racking, fluid dynamics in immersion tanks, airflow in hybrid setups, and the workflows of on-site technicians. In other words, the engineering remit goes beyond the miner itself to incorporate how the equipment is installed, maintained and upgraded over time.
ACME Swisstech’s participation also reflects an attempt to create standardized yet customizable blueprints for large-scale mining facilities. Operators can start from a reference architecture and then adjust details according to local regulations, land constraints, or the characteristics of their energy sources.
By designing everything from control electronics to physical layout as part of a unified project, the partners are trying to reduce the number of ad hoc fixes and one-off configurations that typically accumulate in long-running mining operations. The expectation is that more coherent design will lead to lower complexity and smoother day-to-day management.
Operational flexibility and thermal management
A core selling point of the new systems is the way they handle heat management in high-density deployments. Immersion cooling is central to this, since it enables significantly higher packing of compute in a given footprint compared to air cooling, while keeping temperatures within safe ranges.
By separating the compute and power layers, the design allows each part of the stack to be sized and tuned to the expected thermal and electrical load of a specific site. If a facility can secure unusually cheap electricity but has limits on floor space, operators can push toward higher density. If, instead, the energy supply is more restrictive, they can restrain density and focus on maximizing efficiency per kilowatt.
Tether argues that these systems enable operators to react more quickly to real-time performance and environmental data. Sensors and management software feed back into controls that can shift how much power is delivered to particular racks, or how aggressively cooling systems run, without requiring physical reconfiguration of entire machines.
Although immersion is currently the primary focus, Tether is openly working on alternative cooling schemes to suit different climatic and regulatory contexts. That could mean hybrid models where some modules are immersion-cooled while others use advanced air or liquid cooling, all orchestrated under a common control and monitoring framework.
This level of control aligns with comments from Tether CEO Paolo Ardoino, who has underscored that independent adjustment, upgrading and cooling of system components is central to the company’s mining strategy. Having the ability to tweak each layer separately is seen internally as a way to better manage costs and operational risks as mining conditions evolve.
From sealed boxes to component-level control
In outlining the rationale behind the project, Tether draws a sharp contrast between its modular concept and the traditional model of sealed, fixed mining units. Under the conventional approach, miners are delivered as integrated boxes where compute, casing and power supply are packaged together, limiting what can be changed without discarding the whole device.
That monolithic setup makes it difficult to scale in small increments or to extend the useful life of individual components. If a particular chip generation falls behind, or if a new cooling strategy becomes available, operators often find themselves replacing entire fleets of units instead of just the parts that need updating.
By contrast, Tether’s modular methodology is designed so that operators can expand, refresh or reconfigure the system in stages. New hash boards can be brought in while legacy boards are gradually retired, and power infrastructure can be upgraded to support different voltage or redundancy requirements without forcing a wholesale hardware swap.
For mining companies, this kind of gradual evolution can translate into more predictable capital expenditure and less disruption. Facilities do not need to wait for a full hardware cycle to implement improvements, and they can respond more quickly to regulatory shifts or changes in local energy markets.
Ardoino has framed this as a broader rethink of mining infrastructure, arguing that the industry can benefit from the same kind of modular, data-centre-like philosophy that has become standard in cloud computing. Instead of seeing miners as disposable gadgets, they become elements in a larger, more flexible industrial system.
Canaan’s positioning and Tether’s broader mining strategy
The collaboration with Tether fits into Canaan’s push to position its ASIC technology within a modular hardware platform that can serve both immersion and non-immersion environments. The company stresses that its hash boards are designed for flexible integration into partner-built systems rather than only into branded rigs.
Canaan, publicly listed on the Nasdaq Global Market since 2019, has roots in the ASIC mining business dating back to 2013, when its founding team commercialized some of the earliest Avalon-branded Bitcoin miners. Over time, the firm has shifted from shipping standalone units to offering more adaptable building blocks for large operators.
Under the new agreement, Tether has also secured an option to purchase additional volumes of custom hash board modules in later phases. This clause points to a potential multi-stage ramp-up of deployments, likely tied to the performance of initial sites and evolving market conditions.
While Tether is best known as the issuer of USDT, the largest dollar-pegged stablecoin by market capitalization, the company has been steadily expanding into Bitcoin mining infrastructure. Past initiatives include the development of Mining OS (MOS) and an open-source Mining SDK aimed at giving operators more direct control over hardware, energy usage and site performance.
The new modular hardware initiative can be seen as an extension of that strategy, bringing the same philosophy of openness and operator control from software into the physical layer. Instead of merely managing third-party machines, Tether wants a say in how those machines are designed, assembled and operated at scale.
Although the company has not disclosed detailed figures for investment, installed capacity or revenue expectations, its messaging consistently highlights tighter control over cost, efficiency and large-scale behaviour. In a sector where fluctuations in BTC price, mining difficulty and electricity tariffs can quickly erode margins, that degree of control is framed as a strategic asset.
Viewed in the broader context of the mining landscape, Tether’s collaboration with Canaan and ACME Swisstech underscores a trend toward more customizable, component-level infrastructure. As industrial-scale miners compete on ever thinner margins, the ability to fine-tune computing, power and cooling separately is becoming a key differentiator for long-term operations.
