Overview

The SilverStone RM400 4U Rackmount Server Chassis is a robust, versatile case designed for businesses and IT professionals who need a reliable foundation for custom server builds. This rackmount chassis supports multiple motherboard sizes, including SSI-CEB, ATX, and mATX, making it adaptable to a variety of server setups. The secure enclosure is built with durability in mind and includes a front door with a key lock for added physical security. Whether you're setting up a small office server or a larger enterprise system, this chassis is designed to meet demanding needs while keeping your hardware safe and organized.

Features & Benefits

The SilverStone RM400 offers multiple features that enhance flexibility and performance. It includes three 5.25-inch drive bays, providing ample space for device installation, and supports a 120mm fan for efficient cooling. Users can also add extra fans to further optimize airflow. The chassis offers two USB 3.1 Gen 1 ports for fast data transfer, backward compatible with older USB devices. The rear-mounted power supply design not only saves space but also improves airflow, making it an excellent choice for users who need a space-efficient and cool server environment.

Best For

This rackmount server chassis is ideal for small to medium businesses and IT professionals who need a flexible and secure server case. It’s particularly suited for users looking to build a custom server in a durable, secure enclosure. With its ample expansion options, it also works well for environments that require reliable hardware for continuous use. Those who need a modular chassis with versatility in hardware installation and secure physical access will find this product a strong fit.

User Feedback

User reviews of the SilverStone RM400 are largely positive, particularly regarding its solid build quality and spacious interior. Many appreciate the ease of assembly and the ample space for components, which makes it a great choice for custom server builds. The front door lock is another highlight, adding an extra layer of security. However, some users have suggested that better airflow could be achieved with additional fan options, though the included fan still provides adequate cooling for most setups. Overall, it’s praised for being a reliable and secure server chassis.

Pros

  • This chassis supports multiple motherboard sizes (SSI-CEB, ATX, mATX), making it highly versatile for various server builds.
  • The front door lock provides an added layer of physical security, making it ideal for businesses that need to protect sensitive data.
  • Ample space inside the chassis allows for easy installation of components, even in more complex builds.
  • The rear-mounted power supply improves airflow and space efficiency, reducing internal clutter.
  • Users appreciate the three 5.25-inch drive bays, offering flexibility for adding different devices.
  • A 120mm fan is included for cooling, with additional fan support available for more demanding setups.

Cons

  • The chassis can be bulky and heavy, which might make it less suitable for users who need portability.
  • Some users found the airflow options to be limited, particularly for high-performance setups that generate more heat.
  • While the front door lock provides basic security, it may not be sufficient for environments with high physical security needs.
  • The 5.25-inch drive bays may not be ideal for users needing larger or more diverse drive configurations.
  • Assembly can be straightforward for some, but others recommend improving airflow options to avoid overheating issues.
  • The steel material makes the chassis sturdy but adds to the overall weight, making it harder to move for those who need mobility.

Ratings

After analyzing verified user reviews worldwide, across multiple languages and platforms, we’ve compiled the aggregated ratings for the SilverStone RM400 4U Rackmount Server Chassis. Spam, bot-generated, incentivized, duplicated, or off-topic reviews have been filtered out to ensure only high-quality feedback contributed to these scores. Both strengths and areas for improvement are reflected, providing a well-rounded picture of this product’s performance in real-world usage.

Build Quality
89%
Many users are impressed by the robust construction of this server chassis. Its steel material ensures durability and long-term use in demanding environments. Reviewers also appreciate the solid feel of the chassis, which provides confidence when handling heavy hardware components.
However, some users mention that the overall weight of the chassis can make it cumbersome to move during installation. The steel build, while sturdy, also adds to the bulk, which might be inconvenient for those with limited space or for frequent transport.
Ease of Installation
82%
18%
Several buyers highlight that installation is relatively straightforward, especially for experienced server builders. The chassis accommodates various motherboard sizes, and the drive bays are easy to configure, which streamlines the assembly process.
On the downside, a few users found the assembly instructions somewhat lacking in clarity, which led to confusion during setup. Additionally, some mentioned that mounting the power supply and managing cables could be tricky due to the tight interior space.
Cooling Efficiency
75%
25%
Users appreciate the inclusion of a 120mm fan, which provides a basic level of cooling. This feature is suitable for general use, especially when paired with additional fan options, giving buyers flexibility to enhance cooling as needed.
Some reviewers felt that the default cooling setup wasn't sufficient for high-performance or heavily-loaded systems. A few suggested that additional airflow improvements or extra fans would be necessary for optimal cooling, particularly in hotter environments or under full load.
Security Features
90%
The front door with key lock stands out as a major security feature, which many users appreciate. It provides an additional layer of protection for sensitive server hardware, making it ideal for business and enterprise environments where physical security is a priority.
A few users mentioned that the lock could feel flimsy and may not provide the highest level of security in extremely high-risk environments. While adequate for most users, those requiring advanced security might consider additional measures.
Motherboard Compatibility
85%
The chassis supports multiple motherboard sizes, including SSI-CEB, ATX, and mATX, which gives users significant flexibility when building custom servers. This wide compatibility ensures that users can adapt it to various system configurations.
However, some users experienced difficulties with specific motherboard models, particularly when fitting larger boards. A few noted that while the compatibility range is broad, the layout might not be ideal for all motherboards, requiring some adjustments or additional parts.
Drive Bay Flexibility
88%
The chassis offers three 5.25-inch drive bays, allowing for versatile installation options. This flexibility is highly valued by users looking to expand storage or add other devices like optical drives or additional cooling systems.
On the other hand, some buyers felt that the number of 5.25-inch bays might not be enough for larger setups, especially if they require more storage. Additionally, the limited bay space could be restrictive for users needing extensive drive configurations.
Space Efficiency
80%
20%
Reviewers appreciate the chassis' compact 4U size, which allows it to fit into standard server racks while still providing ample space for essential components. It's ideal for users looking for a balance between space-saving and functionality.
However, a few users have pointed out that the interior space can feel cramped when trying to install large or multiple components, especially in a high-performance setup. The tight fit might require more careful planning of cable management and hardware placement.
USB Port Performance
77%
23%
The inclusion of two USB 3.1 Gen 1 ports is appreciated by many users for faster data transfer speeds. These ports are backward compatible with older USB standards, providing convenience for a wide range of peripheral devices.
However, some users feel that two USB ports are limiting for users who need more connectivity options. A few reviewers also noted that the positioning of the ports might not be ideal for certain setups, especially if the chassis is mounted in a rack.
Power Supply Design
84%
The rear-mounted power supply design contributes to better airflow and space optimization, which is appreciated by users looking to maximize the chassis' cooling efficiency. This design also keeps the internal layout neat and organized.
Some users have noted that the rear-mounted design can be tricky to work with if you're adding components that interfere with the power supply's position. Additionally, the power supply slot may not accommodate all models, requiring further modifications or different power units.
Noise Levels
73%
27%
The chassis' noise levels are generally acceptable under normal conditions. Users have found it to be relatively quiet when using the included fan and a moderate setup of components.
However, in more demanding configurations with multiple fans or high-powered components, some buyers reported increased noise. This can be a concern in noise-sensitive environments, and additional soundproofing or fan upgrades might be necessary for quieter operation.
Value for Money
92%
The chassis offers great value for its price, especially considering its solid build quality, security features, and flexible design. Many users feel they get a lot of functionality for the price, making it a smart choice for small to medium businesses or custom server builders.
A few users feel that the chassis could offer more features at this price point, such as additional drive bays or advanced cooling options. However, these complaints are relatively minor compared to the overall value it provides.
Long-Term Durability
86%
Users note that the chassis' durable steel construction ensures it can withstand long-term use in various environments. The design is built to handle heavy components and maintain stability, which is essential for business and enterprise applications.
On the downside, some users mentioned that the chassis' weight and bulkiness might cause issues during transportation or frequent reconfigurations. Additionally, the longevity of certain components, like the lock mechanism, could be a concern in the long run.

Suitable for:

The SilverStone RM400 4U Rackmount Server Chassis is an excellent choice for small to medium businesses, IT professionals, and server builders who need a durable and secure case for custom server setups. Its flexibility with multiple motherboard sizes, including SSI-CEB, ATX, and mATX, makes it adaptable to various system configurations. The inclusion of three 5.25-inch drive bays and ample expansion options further ensures that users can easily customize their server setups. Additionally, the chassis’ solid build quality, front door lock, and rear-mounted power supply provide peace of mind and help maintain efficient airflow in demanding environments. It's ideal for users seeking a reliable, secure, and space-efficient solution for continuous server operation.

Not suitable for:

However, the SilverStone RM400 4U Rackmount Server Chassis may not be the best fit for those looking for a lightweight, easily portable option. Some users have found the chassis bulky and heavy, which can be a hassle for those who frequently move their servers. Additionally, the interior space might feel cramped for larger or high-performance components, requiring more careful planning during installation. Users who need advanced cooling setups or additional drive bays may also find the basic cooling configuration and limited bay space restrictive. Lastly, those requiring high-level physical security may want to explore other options, as the front door lock is seen as adequate but not the most robust security feature for high-risk environments.

Specifications

  • Chassis Type: 4U rackmount chassis designed for business and enterprise use.
  • Motherboard Compatibility: Supports SSI-CEB, ATX, and mATX motherboards for flexible server builds.
  • Drive Bays: Equipped with three 5.25-inch drive bays for flexible device installation.
  • Cooling: Includes a 120mm fan and supports additional fan installations for better airflow.
  • USB Ports: Features two USB 3.1 Gen 1 ports, backward compatible with older USB standards.
  • Power Supply: Rear-mounted power supply supports up to 160mm depth for efficient space utilization.
  • Security: Front door with key lock provides enhanced physical security for the server components.
  • Dimensions: Measures 16.93 x 17.56 x 6.93 inches, fitting in standard 4U rackmount spaces.
  • Weight: Weighs approximately 23.8 pounds, providing a stable and durable build.
  • Material: Constructed from high-quality steel for durability and strength.
  • Intended Use: Ideal for small to medium businesses and custom enterprise server builds.
  • Expansion Options: Offers ample space for additional drives and expansion cards, supporting future upgrades.
  • Cooling Support: Supports additional fan installations to meet the cooling needs of high-performance servers.
  • Front Door Lock: The front door features a key lock, offering secure access control.
  • Rackmount Compatibility: Designed to fit in standard 19-inch racks, ideal for rackmount server configurations.
  • Build Quality: Sturdy steel construction ensures reliability for continuous operation in business environments.
  • Power Supply Mounting: The power supply is rear-mounted, enhancing airflow and minimizing space usage.
  • Drive Compatibility: Supports a variety of devices, such as optical drives and storage solutions, within the 5.25-inch bays.

FAQ

The SilverStone RM400 is a 4U rackmount server chassis that supports multiple motherboard sizes (SSI-CEB, ATX, mATX). It includes three 5.25-inch drive bays for flexible installation, a 120mm cooling fan, rear-mounted power supply for better airflow, and a front door with a key lock for added security.

This chassis supports motherboards in the SSI-CEB, ATX, and mATX form factors, providing flexibility for a variety of server builds. However, it's not suitable for larger motherboard sizes like E-ATX or XL-ATX, so you’ll need to confirm compatibility with your specific components.

Installing components is straightforward, as the SilverStone RM400 provides ample space for motherboards, drives, and cooling solutions. The three 5.25-inch drive bays are easy to access, and the rear-mounted power supply ensures efficient use of space. Ensure that your motherboard and drives are compatible with the chassis' form factor and drive bay configuration.

The SilverStone RM400 comes with a 120mm fan included for basic cooling. However, it supports additional fan installations for improved airflow, making it a good option for high-performance builds. If you plan on using the chassis for demanding tasks, consider adding more cooling solutions to ensure optimal temperatures.

Yes, the front door of the SilverStone RM400 features a key lock, adding a layer of physical security. This makes it ideal for businesses or environments where sensitive server equipment needs protection from unauthorized access.

This rackmount chassis is designed for continuous use, making it suitable for small to medium businesses and enterprise server setups. Its durable steel construction and efficient airflow support long-term reliability, though you may need to consider additional cooling if your server is running heavy workloads constantly.

The SilverStone RM400 has dimensions of 16.93 x 17.56 x 6.93 inches, so it requires a standard 4U rackmount space. Ensure that your rack or server cabinet has sufficient clearance, and also keep in mind the weight of the chassis (23.8 pounds) when determining the installation space.

The chassis includes three 5.25-inch drive bays, allowing you to install optical drives, hard drives, or other 5.25-inch devices. For those needing more storage options, consider using adapters or additional drive cages that fit within the 5.25-inch bays.

Yes, the SilverStone RM400 includes two USB 3.1 Gen 1 ports, which are backward compatible with older USB standards. These ports are useful for connecting peripherals or transferring data quickly between devices.

While the SilverStone RM400 can handle most standard server setups, its cooling might not be sufficient for high-end, heat-intensive builds without additional fan upgrades. If you plan to use this chassis for high-performance applications, adding more cooling options is highly recommended.