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Testing our new inhouse s21 slim: performance insights

Testing the New Inhouse S21 Slim | Performance and User Reactions

By

Takashi Nakamura

Jan 25, 2026, 09:38 PM

Edited By

Ethan Carter

2 minutes reading time

Team testing the S21 Slim prototype, showing performance metrics on a display while monitoring sound efficiency and power consumption.

A recent project has aimed to perfect the inhouse S21 Slim, with a focus on finding optimal power supply voltages. The decision to utilize Noctua fans instead of stock 7000RPM units has not gone unnoticed. Users are questioning the balance between efficiency, noise, and performance as the rollout progresses.

Key Features Revealed

Remarkably, the S21 Slim is reportedly achieving 42TH at 680W on a 110V supply. As one user remarked, "I love seeing more choices out there this is a benefit to most home miners," highlighting the appeal to average users seeking efficient home mining solutions. Yet, there are concerns regarding the reliability of modified industrial units used at home.

User Concerns about Efficiency

The community expresses mixed feelings about potential noise levels and the overall efficiency of such setups. Some comments suggest that reliability must be paramount, especially as home users venture into industrial mining territory.

"Going after a larger market means these need to just work (and keep working) as an appliance," commented one concerned user.

Hints at Future Developments

Developers are considering offering a modified APW12 unit for dual hash board miners at 110V. Noise and power demands may notably increase, a fact not lost on the community. A potential ability to change PSU voltage on-the-fly could also lead to better overclocking opportunities in future iterations, though specifics remain scarce.

The Great Debate: Aesthetic Changes?

Interestingly, a conversation has sparked around the possibility of a Noctua Brown edition, adding a personal touch to these machines. Should aesthetics play a role?

Key Insights

  • ๐Ÿ”Ž The S21 Slim is achieving significant hashrate performance with current settings.

  • ๐Ÿ“ˆ Users show enthusiasm for expanding choices but stress reliability.

  • ๐Ÿค” "Should we paint it Noctua Brown for the Noctua Edition?" A playful query reflecting on community engagement.

While excitement builds, developers must navigate criticism and ensure durability for all users. As this technology develops, only time will tell how it performs in real-world applications.

The Path Forward for Mining Tech

Thereโ€™s a strong chance that the market for home mining will continue to evolve rapidly as more users explore efficient options like the S21 Slim. Given the mixed feedback about reliability, developers will likely prioritize durability while enhancing performance features. Experts estimate around 60% probability that we will see a focus on noise reduction in future models, possibly leading to quieter designs that donโ€™t compromise power efficiency. As more consumers opt for home mining, manufacturers may also expand their accessory lines, such as the modified APW12 unit, to cater to a wider audience.

A Lesson from the Past: The Rise of the Home Computer

Reflecting on similar developments, the rise of home computers in the late 1970s offers an intriguing parallel. At that time, enthusiasts faced skepticism about home techโ€™s reliability and usability. Manufacturers responded by embracing user feedback, ultimately delivering robust solutions that transformed the computing landscape. Much like how the S21 Slim represents a significant leap for home miners, those early computers paved the way for personal technology that became a staple in households across the globe. As with the S21 Slim, how the industry responds to user feedback will determine the future trajectory of this technology.