Review of M6DS++ 

1. Executive Summary 

This report tests the performance of the WhatsMiner M6DS++ and its deployment within the Heat Core XS2400 cold plate cooling system.
Key results:
Hashrate: up to 608 TH/s (Normal Mode)
Efficiency: 14.77–15.61 J/TH
System scale: 146 PH/s per container
Deployment time: ~1 day
Estimated daily profit: ~$3,100
The results confirm stable miner performance and demonstrate a scalable, deployment-ready system solution. 

2. Background and Partnership 

In March 2026, MicroBT introduced the WhatsMiner M6DS+ and M6DS++ as part of its hydro-cooled mining lineup, targeting large-scale industrial mining operations. As mining infrastructure continues to scale, increasing power density and thermal management complexity are accelerating the industry’s transition toward liquid-cooled, high-density systems.
Backed by MicroBT as a strategic investor and partner, Heat Core focuses on enabling scalable and standardized deployment of hydro-cooled mining infrastructure. By integrating the M6DS++ with the Heat Core XS2400 cold plate cooling system, designed for real-world deployment, the solution supports stable operation at up to 45°C (113°F) ambient temperature, 50°C(122°F) inlet water, and achieves zero water consumption through dry cooling. 

3. Product Overview: M6DS++ 

3.1 Packaging 

The packaging is designed to be compact and robust, ensuring safe transportation and efficient handling during logistics. The external dimensions are 800 mm × 580 mm × 180 mm, with a gross weight of 32 kg, providing a balance between protection and transport efficiency. 

Dimension of Delivery Package 

3.2 Miner Overview 

The M6DS++ continues MicroBT’s hydro-cooling design, featuring a compact and robust structure optimized for high-density deployment. Integrated handles allow for convenient installation, maintenance, and rack integration within containerized environments. The miner measures 663 × 482.6 × 86 mm and has a net weight of 29.5 kg, making it suitable for standardized deployment in large-scale systems. 

Overview of the M6DS++ 

Detail Image of Hot Water Outlet/Inlet 

3.3 Label & Identification 

The labels on the miner are shown below: 

3.4 Specifications 

The WhatsMiner M6DS++ delivers a hash rate of 556–610 TH/s with an efficiency of 15.5 J/TH, compared to the M63 series, the M6D series supports higher inlet water temperatures, increasing from 45°C (113°F) to 50°C (122°F) under ~9kW operating conditions. This expanded thermal tolerance enables more stable operation across a wider range of environments while reducing cooling system constraints and overall infrastructure costs.
The M6D series is designed for stable, long-term operation, prioritizing efficiency, reliability, and predictable performance over aggressive overclocking strategies, making it well-suited for industrial-scale deployment. 

Note: The data presented reflects the performance of the tested unit. Actual results may vary depending on operating conditions and deployment environments. 

4. Test Methodology and Conditions 

4.1 Test Platform 

The M6DS++ was tested on the Heat Core HS20 platform, which is designed for heat-reuse applications such as residential heating 

HS20 System Diagram

 HS20 Platform –Testing Environment 

4.2 Test Conditions 

The evaluation was conducted using a single M6DS++ unit. Testing was performed across two operating modes: Normal Mode and Low Power Mode, to capture performance characteristics under different power profiles.
The inlet water temperature was maintained at 35°C (95°F) throughout the test, representing a typical mid-range operating condition for hydro-cooled systems. Ambient temperature ranged between 25–27°C (77–81°F), ensuring a stable and controlled thermal environment. The cooling system operated at a constant flow rate of 10 L/min, with outlet water temperature varying depending on the operating mode.
All performance data was collected through the Whatsminer Tool and the Heat Core HS20 platform monitoring interface, ensuring consistency and data accuracy. 

4.3 Test Procedure 

Each operating mode was run continuously for a minimum of 2 hours to evaluate short-term performance stability under different power conditions. In addition, system-level thermal and operational data were monitored over a 24-hour period to assess continuous operation and long-term reliability.
This combined approach allows for both immediate performance validation and extended stability assessment, providing a more comprehensive evaluation of real-world operating behavior.
The controlled test environment ensures consistent, repeatable results representative of real deployment conditions.

5. Performance Evaluation Results 

5.1 Performance Stability and Efficiency 

The M6DS++ maintains stable performance across both operating modes. Firmware Version: H616-CB6V5-20260302.15.REL3

5.2 Performance Stability under Temperature Variation 

Under Normal Mode, the M6DS++ maintains stable hashrate performance within the tested temperature range, demonstrating consistent computational output under controlled thermal conditions. 

5.3 Efficiency Stability under Temperature Variation 

Energy efficiency remains consistent across varying temperature conditions, indicating effective power control and stable operational behavior even at elevated inlet temperatures. 

6. Integrated Package Overview:  Heat Core cold plate cooling system + M6DS++

Building on the verified miner performance, Heat Core offers an integrated package combining the M6DS++ with its cold plate cooling system. The miner is deployed within the Heat Core XS2400 cold plate cooling system , forming a fully integrated, ready-to-deploy mining solution that combines mining hardware and supporting infrastructure into a unified system. This approach simplifies delivery and reduces on-site integration complexity. 

XS2400 + M6DS++ Integrated Deployment Solution 

Note: Customization options are available based on deployment requirements. 

The solution is available in two standardized container configurations: XS1200 supports up to 120 miners with an integrated container and dry cooler design. XS2400 supports up to 240 miners, delivering approximately 146 PH/s per container, and is designed for high density and larger-scale deployments with a separated dry cooling configuration. 

  XS1200 Internal Structure   

 XS2400 Internal Structure 

7. Commercial Value and Payback Analysis 

7.1 Assumptions and Methodology 

The analysis is based on static market conditions (April 25, 2026), assuming a static Bitcoin price, electricity cost, and network difficulty. 

7.2 Economics (XS2400 Container +240 units of M6DS++) 

 Based on tested performance data of 608 TH/s per miner, the system achieves an aggregate hashrate of approximately 146 PH/s, delivering an estimated daily profit of ~$3,100 under current market conditions 
System Performance Summary