---
product_id: 130260100
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: "₪2060"
currency: ILS
in_stock: true
reviews_count: 8
category: "Silver Stone"
url: https://www.desertcart.co.il/products/130260100-silverstone-technology-4u-rackmount-server-chassis-with-3-x-5
store_origin: IL
region: Israel
---

# Includes 2 PWM fans (120mm + 80mm) for optimized airflow Redundant power supply up to 160mm deep 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:** ₪2060
**Availability:** ✅ In Stock

## Summary

> 🚀 Power your pro-grade server with SilverStone’s RM400 — where flexibility meets fortress-level 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?** ₪2060 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/130260100-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

- • **Robust Power Options:** Supports standard and mini redundant power supplies up to 160mm deep to ensure uptime.
- • **Secure & Convenient Access:** Front door with key lock plus USB 3.1 Gen 1 ports for fast, secure connectivity.
- • **Optimized Cooling Performance:** Dual PWM fans included with customizable fan placement for whisper-quiet, efficient airflow.
- • **Expansive Drive & Expansion Slots:** Three 5.25" bays and seven PCI/PCIe slots to future-proof your server setup.
- • **Versatile Motherboard Compatibility:** Fits SSI-CEB, ATX, mATX, and mITX boards for ultimate build flexibility.

## Overview

The SilverStone RM400 is a professional 4U rackmount server chassis designed for high-performance environments. It supports a wide range of motherboard sizes including SSI-CEB and ATX, accommodates redundant power supplies, and offers three 5.25" drive bays alongside seven PCI/PCIe slots. Enhanced with USB 3.1 Gen 1 front ports and dual PWM fans, it delivers secure, flexible, and efficient server builds ideal for data centers and advanced home labs.

## 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: Great case for my home lab Siwss Army knife cloud server including a RTX-5090 GPU. - Great upgrade 4U case for my home lab cloud server. I needed more room to add a RTX-5090 to this rig, and didn't want to go all the way to a 5U case. To be clear, there is only one 5090 card brand (Zotac) that will fit this 4U case with enough room on top to comfortably fit the 600W connector & wiring. If using another brand, I would probably go with a 5u case. I installed the Zotac Solid OC specifically in this build. Other Zotac models will likely fit as well. The SOLIDs 137mm height is a perfect fit for this case (which specifies a154mm max height). The case came with a number of front GPU support brackets. I used one, and it makes for a very solid mount. The 5090s aluminum frame holes at the front of the card lined up perfectly with the holes in the provided bracket. With the card secured with three screws in the back, and the case bracket in the front, I am confident the card will not come loose when removing/installing this case in my rack. As far as cooling, the case will fit one Noctua NF-A14x25r G2 PWM (140mm) and two NF-A12x25 PWM (120mm) in the front panel. It is tight, but can be done. Use the adjustable slots instead of fixed holes to slide the two 120mm fans far to the left and right sides of the case to leave room for the 140mm in the middle. I loaded this case up with a total of 8 fans (added a custom slot bracket with (2) 40mm fans for a total of 7 case fans and a Noctua NH-D12L CPU cooler w/fan). This configuration provides fantastic airflow and dropped the CPU temp by a solid 20C over the previous 2U case which was cooling challenged even with a Ghost S1 CPU cooler and (4) 80mm case fans.. Overall well made case. Even with a 10G NIC card and the RTX 5090 installed, there is still room to access at least 2 of the SATA 2.5" mounting plates comfortably (no wires/cards in the way). I now plan on adding a couple of large SATA drives in raid mirror as a home network file server and for backups, making this machine even more of a Swiss army knife of a server. This combination of fans is almost completely silent, even with a moderate load. With the fans at 100% it is only noticeable if you are in the same room, but I doubt you would hear it in the next room. Overall very happy with this case. One negative ,but not enough to remove a star, the manufacturer does not sell a set of sliding rails that fits this case in short racks (slightly less than 22" deep). This case uses screwless rail studs to connect the rails, and there is no option for screw on rails. The only rails designed for this case are too long for my rack. I ended up using the Cyber Power 4POSTRAIL, which worked, but is VERY tight when sliding in the heavy duty rack ears on this case. Installer trick, don't lock down the rail mounting screws (just hand snug them). After you slide the case in fully (might take some wiggling), lock the back screws and the bottom two screws in front. This will lock the rails in place with perfect spacing/alignment, then you can pull the case out and lock down the top two front screws.
Review: Plenty of room for activities! - 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.

## 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 | #67 in Computer Cases |
| Brand | SilverStone |
| Color | grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (346) |
| Date First Available | December 1, 2018 |
| Item Dimensions LxWxH | 16.93 x 17.56 x 6.93 inches |
| Item Weight | 23.8 pounds |
| Item model number | SST-RM400 |
| Manufacturer | SilverStone Technology |
| Number of USB 2.0 Ports | 1 |
| Number of USB 3.0 Ports | 1 |
| Product Dimensions | 16.93 x 17.56 x 6.93 inches |
| Series | RM400 |

## 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)

## 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

### ⭐⭐⭐⭐⭐ Great case for my home lab Siwss Army knife cloud server including a RTX-5090 GPU.
*by D***G on June 5, 2025*

Great upgrade 4U case for my home lab cloud server. I needed more room to add a RTX-5090 to this rig, and didn't want to go all the way to a 5U case. To be clear, there is only one 5090 card brand (Zotac) that will fit this 4U case with enough room on top to comfortably fit the 600W connector & wiring. If using another brand, I would probably go with a 5u case. I installed the Zotac Solid OC specifically in this build. Other Zotac models will likely fit as well. The SOLIDs 137mm height is a perfect fit for this case (which specifies a154mm max height). The case came with a number of front GPU support brackets. I used one, and it makes for a very solid mount. The 5090s aluminum frame holes at the front of the card lined up perfectly with the holes in the provided bracket. With the card secured with three screws in the back, and the case bracket in the front, I am confident the card will not come loose when removing/installing this case in my rack. As far as cooling, the case will fit one Noctua NF-A14x25r G2 PWM (140mm) and two NF-A12x25 PWM (120mm) in the front panel. It is tight, but can be done. Use the adjustable slots instead of fixed holes to slide the two 120mm fans far to the left and right sides of the case to leave room for the 140mm in the middle. I loaded this case up with a total of 8 fans (added a custom slot bracket with (2) 40mm fans for a total of 7 case fans and a Noctua NH-D12L CPU cooler w/fan). This configuration provides fantastic airflow and dropped the CPU temp by a solid 20C over the previous 2U case which was cooling challenged even with a Ghost S1 CPU cooler and (4) 80mm case fans.. Overall well made case. Even with a 10G NIC card and the RTX 5090 installed, there is still room to access at least 2 of the SATA 2.5" mounting plates comfortably (no wires/cards in the way). I now plan on adding a couple of large SATA drives in raid mirror as a home network file server and for backups, making this machine even more of a Swiss army knife of a server. This combination of fans is almost completely silent, even with a moderate load. With the fans at 100% it is only noticeable if you are in the same room, but I doubt you would hear it in the next room. Overall very happy with this case. One negative ,but not enough to remove a star, the manufacturer does not sell a set of sliding rails that fits this case in short racks (slightly less than 22" deep). This case uses screwless rail studs to connect the rails, and there is no option for screw on rails. The only rails designed for this case are too long for my rack. I ended up using the Cyber Power 4POSTRAIL, which worked, but is VERY tight when sliding in the heavy duty rack ears on this case. Installer trick, don't lock down the rail mounting screws (just hand snug them). After you slide the case in fully (might take some wiggling), lock the back screws and the bottom two screws in front. This will lock the rails in place with perfect spacing/alignment, then you can pull the case out and lock down the top two front screws.

### ⭐⭐⭐⭐⭐ Plenty of room for activities!
*by T***. on September 28, 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.

### ⭐⭐⭐⭐ Great case for gaming/editing machine to use in rack. Lots of room. Easy fit with AIO water cooling.
*by S***A on September 10, 2022*

I've had this in use for a few months now. If you don't have an extreme setup or anything, this will do nicely. My older editing rig that I wanted to test this case out with is listed below. I wasn't sure how this was going to work -- would the airflow be good? Would everything fit? How noisy would a 'basic' server case be (clanking, rattling, etc)? So far, I'm very pleasantly surprised at how simple this change over was. Reading the comments, it made it seem like it would be more trial and error, which I didn't experience anything other than a straight forward drop in. With the rack in my closet, I never realized how quiet my computer room could have been many years prior to this. Wish I did this a long time ago. Way more expensive than going a simple desktop case but well worth it. When editing or gaming in this case, my temps are not any worse than with my high flow desktop cube case I had (Corsair 540). I typically stay ~55-58c during video rendering and during gaming the gpu is ~60c with a mild fan curve. Even in the closet, the stock fan curve was louder than I wanted but kept temps down in the low 50's. So I figured the trade-off of >10c for much quieter sound was worth it. So if you're worried about this case not having all the fans you've become accustomed to with gaming cases, don't fret. A good AIO cooler (the Arctic II is excellent and fits great in this case!) and two Noctua 80mm fans on the rear keep the flow decent with minimal sound. Components i7 6850k (oc'd to 4ghz) x99 Titanium ATX mobo R9 Fury 4 x SSD's Arctic II 240 Cooler I ended up not using the gpu bracket or hdd cage. I just stuffed my 4 ssd's in the area for 5.25 devices since I'll never use that for anything. Cable management is easy but not as much of a requirement for something that will be tucked away. Sure, you still want it clean and easy to work on as well as keeping the restriction of airflow down, with that in mind, it's nothing to get the cables out of the way. The case is solid and sturdy. When put in the rack with the lid, no rattles from the case whatsoever. With the front lockable door open or closed, it made no difference in my temps, so I just keep it closed. Love the usb-c port on the front! Mild cons: It's pricey. Can't find good quality sliding rails to work with it. Will be moving my other 2 computers into these cases over time.

## 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 Israel*
*Store origin: IL*
*Last updated: 2026-03-02*