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  1. Home
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  3. エスアイ Si R&D
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エスアイ Si R&D

EstablishmentMay 2009
capital1000Ten thousand
addressTokyo/Akiruno-shi/591-2 Hikida
phone042-518-7555
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last updated:Jul 29, 2020
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  • Company information
  • Products/Services(31)
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エスアイ Company Profile

Si R&D, the specialist in silent racks. We perfectly solve noise and heat dissipation challenges with our industry-specific know-how.

SI Corporation is a specialized company for silent racks aimed at HPC computers and office servers. We operate with a unique business model to solve sound and heat problems, adopting a fabless production method like Apple (USA) and Muji (Japan), without having our own factories, and focusing on development. The products we develop not only excel in functional performance but also incorporate creativity and ingenuity to maximize the effects after implementation. We do not handle mass-produced items (selling products without follow-up) that do not guarantee sufficient results; instead, we provide customized specifications tailored to each project and customer, creating a system where users can derive the greatest benefits. Only with our "customized specifications" for SI silent racks can we ensure absolute success in implementation, unlike others. By concentrating on solving customer challenges and achieving their goals, our operational policy focuses solely on "favorable implementation results," always aiming to provide significant added value and benefits to all involved parties. The products developed by Si R&D are not just items but solutions that directly address customer problems and challenges.

Business Activities

Research and development, design, manufacturing, and sales of HPC and quiet racks for servers Construction of air-cooled server rooms Noise and heat dissipation measures for experimental equipment

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Products/Services (31)

[Case Study of Silent Rack] Ritsumeikan University, College of Information Science and Engineering product image
[Case Study of Silent Rack] Ritsumeikan University, College of Information Science and Engineering
[Case Study of Silent Rack] Toyota Technological Institute product image
[Case Study of Silent Rack] Toyota Technological Institute
[Information] "Installation Advice Collection for Silent Racks" *Free Distribution product image
[Information] "Installation Advice Collection for Silent Racks" *Free Distribution
Optimize the temperature of the server room with the "ZITS Heat Diffusion System." product image
Optimize the temperature of the server room with the "ZITS Heat Diffusion System."

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catalog(8)

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[Information] Advice on Installing a Silent Rack

[Information] Advice on Installing a Silent Rack

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[Information] FAQ for Silent Racks

[Information] FAQ for Silent Racks

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Server noise control and heat dissipation measures

Server noise control and heat dissipation measures

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ZITS Heat Diffusion System

ZITS Heat Diffusion System

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news(7)

2021-07-08_11h09_42.png

[Video Available] Silent Rack Si R&D Measurement Room

  • PRODUCT

The shooting was conducted under severe conditions with room temperature exceeding 30 degrees. The noise attenuation varies by plus or minus 5 dB depending on the rack size and the combination with the machine. In this case, the noise meter responded well to the mid-low frequencies, resulting in slightly higher values, but the unpleasant high frequencies showed significant attenuation as expected, making the auditory experience very good. The sales representative present remarked, "Sufficient performance! I was surprised by the noticeable difference." 【Overview】 ■ Measurement date: August 26, 2021 ■ Measurement location: Si R&D measurement room (background noise below 29 dB) ■ Silent rack: Si R&D S8.0ZR-12U modular assembly ■ Machine: Visual Technology VT64 XS2-2TI ■ Measuring instrument: AR814 ■ Measurement position: 1 meter in front of the rack, height 70 cm

Sep 30, 2021

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2021-07-08_11h09_42.png

Measurement of the actual device equipped with "dBP07V"

  • PRODUCT

We attempted noise measurement with the fanless silent box 'dBP07V-7048grtr' using an actual machine. The machine provided by HPC Tech is the "WRSX32-4GP." The noise level alone is 69dB, and when housed in the silent box, it is 67dB, with a noise reduction down to 41dB, which can be heard in the video. Additionally, this product has accumulated a track record of supplying numerous HPC users over the past few years. We have not received any reports of heat dissipation issues, even with the simple fanless design, so you can purchase with confidence. It is a bestseller that we can supply with assurance. We appreciate your continued use of our product.

Jul 08, 2021

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image_7202.png

Introduction of the 6U Silent Rack (Specifications for Special Purposes with Height Restrictions)

  • PRODUCT

The "Silent Rack S4.5ZR" is listed in the catalog starting from the 6U size. The height of 6U is 478mm, making it a limited specification for special applications with height restrictions (such as under a desk). For reference, the height increments of 3U and the depth specifications at every 100mm in the catalog are for convenience, and we can accommodate any dimensions flexibly and individually. We will propose the most suitable rack specifications for each customer. Our mission is not for customers to choose a "rack that fits their size," but to solve issues related to sound and heat as our responsibility on the supply side. Please feel free to use our services. *For more details, you can view them through the related links. For further inquiries, please do not hesitate to contact us.

Mar 29, 2021

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Detailed information

Company name エスアイ Si R&D
Contact addresspostalcode 197-0834 Tokyo/ Akiruno-shi/ 591-2 HikidaView on map TEL:042-518-7555 FAX:042-518-7556
Key Partners<Universities>------------------------- The University of Tokyo Hokkaido University Tohoku University Nagoya University Kyoto University Osaka University Kyushu University Tokyo Institute of Technology Tokyo University of Science, etc. <Research Institutions>------------------------- National Institute of Advanced Industrial Science and Technology RIKEN Japan Aerospace Exploration Agency (JAXA) High Energy Accelerator Research Organization Advanced Industrial Science and Technology Research Center NHK Science & Technology Research Laboratories, etc. <Sales Companies, Distribution>------------------------- Visual Technology Co., Ltd. HPC Systems Co., Ltd. HPC Tech Co., Ltd. Towa Electric Co., Ltd. GDEP Advance Co., Ltd. GDEP Solutions Co., Ltd. SB C&S Co., Ltd., etc.
Industry IT/Telecommunications
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