---
product_id: 498476258
title: "SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400"
brand: "silverstone"
price: "C$125947"
currency: NIO
in_stock: true
reviews_count: 5
url: https://www.desertcart.ni/products/498476258-silverstone-technology-4u-rackmount-server-chassis-with-3-x-5
store_origin: NI
region: Nicaragua
---

# 3 x 5.25" front bays for versatile device installs Up to 160mm deep Mini redundant PSU support Supports SSI-CEB & ATX/mATX/mITX boards SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400

**Brand:** silverstone
**Price:** C$125947
**Availability:** ✅ In Stock

## Summary

> 🚀 Power your professional server build with SilverStone’s RM400 – where flexibility meets security!

## Quick Answers

- **What is this?** SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400 by silverstone
- **How much does it cost?** C$125947 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/498476258-silverstone-technology-4u-rackmount-server-chassis-with-3-x-5)

## Best For

- silverstone enthusiasts

## Why This Product

- Trusted silverstone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure Front Access:** Front door with key lock ensures your critical hardware stays protected
- • **Next-Gen Connectivity:** USB 3.1 Gen 1 ports deliver blazing 5Gbps speeds, backward compatible for seamless integration
- • **Expandable Storage Options:** Three 5.25" front bays let you customize with optical drives or hot-swap devices
- • **Robust Power Supply Support:** Accommodates standard and mini redundant PSUs up to 160mm deep for reliable uptime
- • **Versatile Motherboard Compatibility:** Fits SSI-CEB, ATX, mATX, and mITX for ultimate build flexibility

## Overview

The SilverStone RM400 is a high-performance 4U rackmount server chassis designed for professionals and data center engineers. It supports a wide range of motherboard form factors including SSI-CEB, ATX, mATX, and mITX, and accommodates standard or mini redundant power supplies up to 160mm deep. Featuring three versatile 5.25" front bays, a secure front door with key lock, and USB 3.1 Gen 1 front I/O for fast data transfer, the RM400 balances expandability, security, and modern connectivity in a durable chassis.

## Description

Silverstone's RM400 is a higher performance server Chassis designed for the professional environment. It is equipped with three 5.25” drive bays, room for ATX/PS2 or Mini redundant power supplies, and motherboard Support up to ssi-ceb. Front I/O ports are upgraded to USB 3.1 Gen1 specification and two PWM fans (one 120mm and ONE 80mm) are included so keep up with modern computing conveniences. As an overall package Designed for maximizing efficiency, flexibility, and durability, The RM400 is a great choice for professionals or data center engineers looking to build a server.

Review: ABSOLUTE GARBAGE WORTHLESS PIECE OF METAL!!!! DO NOT BUY THIS!!!! I can't believe I spent over $1000 on this junk with the rails, only to discover that the rear of the case is uneven and bent. It is IMPOSSIBLE to connect ANY PCI card. It doesn't fit. When you connect the card, the screw hole is misaligned, so when you put the screw, the card will pull out of the motherboard and won't be detected. I tried with other PCI cards and even tried changing the motherboard and screws. So the case is to blame. At this price it's a total rip-off. Oh and don't even try to contact Silverstone, you can't, their contact form is broken there is literally ZERO customer support or warranty.
Review: this server case was a good size and fit a raid controller card 1 - 4 hdd bay. I could have installed another on the other side if I needed. I had to modify the case to accept a dual PSU, but with the minimal adjustments it worked out really well definitely recommend... thanks... Stan...

## Features

- Supports up to SSI-CEB motherboard.
- Supports ATX (PS2)/Mini redundant power supply up to 160mm deep
- Supports standard profile PCI/ PCIe x 7 slots. Three 5.25" Drive Bays for flexible 5.25" Device installation
- Front door with key lock for extra security. 5Gbps Super speed USB 3.1 Gen 1 interface, backward compatible with USB 2.0/ 1.1
- 5Gbps Super speed USB 3.1 Gen 1 interface, backward compatible with USB 2.0/ 1.1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B07MKSH1B8 |
| Best Sellers Rank | #65,408 in Computers ( See Top 100 in Computers ) #492 in Computer Cases |
| Customer reviews | 4.5 4.5 out of 5 stars (190) |
| Date First Available  | 9 January 2019 |
| Item model number  | SST-RM400 |
| Manufacturer  | Silverstone |
| Product Dimensions  | 43 x 44.6 x 17.6 cm; 10.8 kg |
| amazon.ae Return Policy | Regardless of your statutory right of withdrawal, you enjoy a 15-30 day right of return for most products. For exceptions and conditions, see Return details . |

## Product Details

- **Brand:** SilverStone
- **Case Type:** Mid Tower
- **Color:** grey
- **Cooling Method:** Fan
- **Fan Size:** 120 Millimeters
- **Material:** --
- **Model Name:** RM400
- **Motherboard Compatability:** SSI CEB
- **Power Supply Mounting Type:** Rear Mount
- **Recommended Uses For Product:** Business

## Images

![SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400 - Image 1](https://m.media-amazon.com/images/I/61mqFwrQXqL.jpg)
![SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400 - Image 2](https://m.media-amazon.com/images/I/71NDXbREfxL.jpg)
![SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400 - Image 3](https://m.media-amazon.com/images/I/71M+RktzeCL.jpg)
![SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400 - Image 4](https://m.media-amazon.com/images/I/71matOONa4L.jpg)
![SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400 - Image 5](https://m.media-amazon.com/images/I/71-noMffQcL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Will Nividias 3090 fit?**
A: They fit after removing one of the drive cages

**Q: Will a NH-D15 fit in here?**
A: No, the RM400 will only fit CPU coolers that are 148mm tall or less. At 160mm, the NH-D15 will not fit in any 4U server chassis. As an alternative, you can look into getting our KR02, which fits in the RM400:
https://www.amazon.com/dp/B07S6CYK7Y

**Q: Can this fit an eatx dual socket motherboard?**
A: There are several types of EATX motherboards, this case can fit up to SSI-CEB form factor motherboard (12-inch x 10.5-inch). But if your dual socketed motherboard is SSI-EEB (12-inch x 13-inch), then no, this case will not fit. For SSI-EEB form factor EATX board, please check out our RM42-502 instead (currently out of stock as of September 2, 2021 but more are coming in about a week):
https://www.amazon.com/dp/B09227RQV2

**Q: How loud are the included case fans?**
A: The noise at maximum speeds are 43.6 dBA and 33.7 dBA for the included 120mm and 80mm fans respectively, Below are additional specs. for the included fans:

Dimensions: 120mm x 120mm x 25mm
Voltage: 6.0V ~ 13.2V
Rated current: 0.45A +/- 0.05A
Speed: 2800 rpm +/- 10%
Max. airflow: 108.76 CFM
Air pressure: 5.63 mmH2O
Max. noise: 43.6 dBA

Dimensions: 80mm x 80mm x 25mm
Voltage: 6.0V ~ 13.2V
Rated current: 0.17A +/- 0.02A
Speed: 3000 rpm +/- 10%
Max. airflow: 43.05 CFM
Air pressure: 4.18 mmH2O
Noise: 33.7 dBA

## Customer Reviews

### ⭐ Review
*by J***N on 10 February 2025*

ABSOLUTE GARBAGE WORTHLESS PIECE OF METAL!!!! DO NOT BUY THIS!!!! I can't believe I spent over $1000 on this junk with the rails, only to discover that the rear of the case is uneven and bent. It is IMPOSSIBLE to connect ANY PCI card. It doesn't fit. When you connect the card, the screw hole is misaligned, so when you put the screw, the card will pull out of the motherboard and won't be detected. I tried with other PCI cards and even tried changing the motherboard and screws. So the case is to blame. At this price it's a total rip-off. Oh and don't even try to contact Silverstone, you can't, their contact form is broken there is literally ZERO customer support or warranty.

### ⭐⭐⭐⭐⭐ Review
*by S***I on 27 December 2023*

this server case was a good size and fit a raid controller card 1 - 4 hdd bay. I could have installed another on the other side if I needed. I had to modify the case to accept a dual PSU, but with the minimal adjustments it worked out really well definitely recommend... thanks... Stan...

### ⭐⭐⭐⭐⭐ Review
*by T***. on 28 September 2025*

This is a great rack mounted case. You can run single or redundant power supplies, It fit my ATX motherboard and RTX card with plenty of room to spare. I have a 360mm AIO cooling system for my CPU and this case handles it with ease. Airflow is consistent and has a well defined path - front to back. Noise levels vary on system load and environmental temps. Plenty of USB ports in front, though I would have liked to see 2 CD/DVD drive bays. Mounts EASILY into a standard rack. Needs 4 screws. Can be mounted to rails to slide out if you want to go that far, however the rails are not included with the case and must be purchased on their own. If you wanted to put the case on it's side and not mount it in a rack, you can do that also. I can see myself re-using this chassis for multiple system builds.

## Frequently Bought Together

- SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400
- SAMSUNG 970 EVO Plus SSD 1TB NVMe M.2 Internal Solid State Drive w/ V-NAND Technology, Storage and Memory Expansion for Gaming, Graphics w/ Heat Control, Max Speed, MZ-V7S1T0B/AM

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-22*