--- product_id: 130260100 title: "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: "EΒ£ 57331" currency: EGP in_stock: true reviews_count: 8 category: "Silver Stone" url: https://www.desertcart.com.eg/products/130260100-technology-4u-rackmount-server-chassis-with-3-x-5-25 store_origin: EG region: Egypt --- # USB 3.1 Gen1 5Gbps super speed Front door with secure key lock Supports SSI-CEB & ATX/mATX/mITX boards 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:** EΒ£ 57331 **Availability:** βœ… In Stock ## Summary > πŸš€ Power Your Server with SilverStone’s RM400 β€” Where Performance Meets Professionalism ## Quick Answers - **What is this?** 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?** EΒ£ 57331 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/130260100-technology-4u-rackmount-server-chassis-with-3-x-5-25) ## 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 - β€’ **Secure Front Access:** Lockable front door ensures your critical drives and devices stay protected. - β€’ **Spacious & Expandable:** Three 5.25" drive bays plus 7 PCI/PCIe slots to future-proof your server setup. - β€’ **High-Speed Connectivity:** USB 3.1 Gen1 ports deliver blazing 5Gbps transfer speeds, backward compatible for all your peripherals. - β€’ **Optimized Cooling & Durability:** Includes dual PWM fans (120mm + 80mm) and rugged 4U steel chassis built to last in demanding environments. - β€’ **Versatile Motherboard Compatibility:** Fits SSI-CEB, ATX, mATX, and mITX for ultimate build flexibility. ## Overview The SilverStone RM400 is a robust 4U rackmount server chassis designed for professionals and data center engineers. It supports a wide range of motherboards including SSI-CEB and ATX variants, offers three versatile 5.25" drive bays, and features a secure front door with key lock. Equipped with USB 3.1 Gen1 ports for high-speed connectivity and dual PWM fans for efficient cooling, this chassis balances durability, expandability, and security in a compact 4U form factor. ## 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 a server build! - The double-packed box more than withstood the rigors of UPS. There was no damage to the case. The case was more than I expected. The pictures (here and elsewhere) don't do it justice. It is roomy, well built, beefy (not light!) and well finished. The dust filters are not magnetic, but snap in; they should be something that you are careful with. The case isn't a deep monster, but has enough room for a good build. I'm using SAS drives and while the drive connectors extend into the "motherboard area" it hasn't been a problem. That said - I have four 6TB drives. Depending on the number of drives you have and the amount of drive cooling you want, YMMV. I haven't had a chance to resilver an array so I don't know what internal temperatures would be like. But, so far, so good. It will probably take me a couple of weeks to become aquanited with the nuances of the case. The "handles" on the case are sturdy and more than support the weight of the case. I haven't installed rails as my rack hasn't been built yet. The case handles remind me a bit of the old APC UPS units (that kind of sturdy). The case connectors were long enough for my build, but I could see issues with others - depending on motherboard, components and cable routing. In my case everything went together well. There have been complaints about not being able to remove the drive trays or moving parts around but that doesn't seem to be a problem - it may take a few seconds to figure out what to unscrew but it can be done. I don't know if any parts of the clone cases will fit, but I'd be game to try. Overall a nice case. Yeah it was expensive, but I think it was worth it. AND it was in stock. The only nit to pick is the use of the small screws (use a magnetic tipped screwdriver!). I have enough parts to build a second server. If I had the same requirements, I wouldn't hesitate to use the same case. *** UPDATE *** I had to replace hard drives as my sas drive went to the bit dumpster in the sky. I purchased some ironwolf sata drives and found that i can only use two mounting screws to secure the drives. I don't think it is a fault ot teh case, but having deeper hard drive bays would allow for secure mounting of hard drives. And a curse on Seagate for deciding to omit screw holes. So if secure hard drives are your thing... you might want to take that into consideration... Review: Beautiful Simplicity - I was searching for a new chassis for my home server and kept striking out with several big name manufacturers. One key was case depth, and most competitors were between 20-25" deep. I don't have the space for that. So I started researching based on dimensions alone. The RM400, at less than 18", had a clear advantage. Two things struck me on first looking at this case: the symmetry, and the included locking bezel (with filter). It's obvious that this case was designed with both form and function in mind, and it isn't lost on users. Upon further examination, I grew increasingly more excited about the small details: the front windows to show LEDs even when the bezel is closed, case design, the chassis intrusion switch. Then you dig deeper: In addition to eight 3.5" drive slots and three 5.25" bays, though not advertised, there are spaces for three 2.5" SSD drives (or 2 SSD and 1 Slim Optical drive - yes, Slim Optical). I do have one warning: because this bay is shallow - a major selling point for space-conscious buyers - it only has about 7.25" of space from the edge of a standard ATX motherboard to the front bezel. In other words, a Hot-Swap bay like the Supermicro M35T, which is 7.7" (plus fan housing), obstructs the motherboard and doesn't work. Likewise, the Silverstone RL-FS305B hot-swap is listed at 7.8" (though I don't have one, so not sure if that counts fan or not - YMMV). This can be overcome by installing a Mini-ITX or Flex-ATX motherboard. It can also be resolved by installing a standard optical drive, which is 6.7". All in all, the RM-400 is a spectacular case. If you choose components you want and design them around this case, it will make an exceptional system. ## 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 | | Antenna Location | Business | | Best Sellers Rank | #69 in Computer Cases | | Brand | SilverStone | | Built-In Media | RM400 | | Case Type | Mid Tower | | Color | grey | | Compatible Devices | Server | | Cooling Method | Fan | | Customer Reviews | 4.3 out of 5 stars 64 Reviews | | Enclosure Material | -- | | Fan Size | 120 Millimeters | | Global Trade Identification Number | 00844761016838 | | Hard Disk Form Factor | 3.5 Inches | | Internal Bays Quantity | 3 | | Item Dimensions D x W x H | 16.93"D x 17.56"W x 6.93"H | | Item Type Name | SilverStone Technology 4U Rackmount Server Chassis with 3 x 5.25" Front Bays with CEB/ATX/mATX/mITX Support RM400 | | Item Weight | 23.8 Pounds | | Manufacturer | SilverStone Technology | | Material | -- | | Mfr Part Number | SST-RM400 | | Model Name | RM400 | | Model Number | SST-RM400 | | Motherboard Compatability | SSI CEB | | Number of Fans | 2 | | Other Special Features of the Product | Supports up to SSI-CEB motherboard, front door with key lock, and three 5.25'' drive bays | | Power Supply Mounting Type | Rear Mount | | Recommended Uses For Product | Business | | Supported Motherboard | SSI CEB | | Total Expansion Slots Quantity | 7 | | Total USB 2.0 Ports | 1 | | Total USB 3.0 Ports | 1 | | Total Usb Ports | 2 | | UPC | 844761016838 | | Unit Count | 60.00 Count | | Warranty Description | 1 year limited | ## 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 ![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) ![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) ![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) ![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) ![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 ### ⭐⭐⭐⭐⭐ Great case for a server build! *by D***Y on October 15, 2020* The double-packed box more than withstood the rigors of UPS. There was no damage to the case. The case was more than I expected. The pictures (here and elsewhere) don't do it justice. It is roomy, well built, beefy (not light!) and well finished. The dust filters are not magnetic, but snap in; they should be something that you are careful with. The case isn't a deep monster, but has enough room for a good build. I'm using SAS drives and while the drive connectors extend into the "motherboard area" it hasn't been a problem. That said - I have four 6TB drives. Depending on the number of drives you have and the amount of drive cooling you want, YMMV. I haven't had a chance to resilver an array so I don't know what internal temperatures would be like. But, so far, so good. It will probably take me a couple of weeks to become aquanited with the nuances of the case. The "handles" on the case are sturdy and more than support the weight of the case. I haven't installed rails as my rack hasn't been built yet. The case handles remind me a bit of the old APC UPS units (that kind of sturdy). The case connectors were long enough for my build, but I could see issues with others - depending on motherboard, components and cable routing. In my case everything went together well. There have been complaints about not being able to remove the drive trays or moving parts around but that doesn't seem to be a problem - it may take a few seconds to figure out what to unscrew but it can be done. I don't know if any parts of the clone cases will fit, but I'd be game to try. Overall a nice case. Yeah it was expensive, but I think it was worth it. AND it was in stock. The only nit to pick is the use of the small screws (use a magnetic tipped screwdriver!). I have enough parts to build a second server. If I had the same requirements, I wouldn't hesitate to use the same case. *** UPDATE *** I had to replace hard drives as my sas drive went to the bit dumpster in the sky. I purchased some ironwolf sata drives and found that i can only use two mounting screws to secure the drives. I don't think it is a fault ot teh case, but having deeper hard drive bays would allow for secure mounting of hard drives. And a curse on Seagate for deciding to omit screw holes. So if secure hard drives are your thing... you might want to take that into consideration... ### ⭐⭐⭐⭐⭐ Beautiful Simplicity *by D***E on January 28, 2019* I was searching for a new chassis for my home server and kept striking out with several big name manufacturers. One key was case depth, and most competitors were between 20-25" deep. I don't have the space for that. So I started researching based on dimensions alone. The RM400, at less than 18", had a clear advantage. Two things struck me on first looking at this case: the symmetry, and the included locking bezel (with filter). It's obvious that this case was designed with both form and function in mind, and it isn't lost on users. Upon further examination, I grew increasingly more excited about the small details: the front windows to show LEDs even when the bezel is closed, case design, the chassis intrusion switch. Then you dig deeper: In addition to eight 3.5" drive slots and three 5.25" bays, though not advertised, there are spaces for three 2.5" SSD drives (or 2 SSD and 1 Slim Optical drive - yes, Slim Optical). I do have one warning: because this bay is shallow - a major selling point for space-conscious buyers - it only has about 7.25" of space from the edge of a standard ATX motherboard to the front bezel. In other words, a Hot-Swap bay like the Supermicro M35T, which is 7.7" (plus fan housing), obstructs the motherboard and doesn't work. Likewise, the Silverstone RL-FS305B hot-swap is listed at 7.8" (though I don't have one, so not sure if that counts fan or not - YMMV). This can be overcome by installing a Mini-ITX or Flex-ATX motherboard. It can also be resolved by installing a standard optical drive, which is 6.7". All in all, the RM-400 is a spectacular case. If you choose components you want and design them around this case, it will make an exceptional system. ### ⭐⭐⭐⭐ Does the job *by J***Z on September 26, 2021* For the most part this is a fine case. All the holes and screws line up nicely. The built in air filters were the main reason I chose this case. Both included case fans are pwm controlled and plenty quiet. It is 4 inches shorter in depth than the case it replaced, and this made for some nearly impossible fitment (pictured). You can NOT fit a gtx 1650 super while 3.5 drives are mounted in the left drive shelf where the drive fan is - one star deducted. I had to put all my HDDs on the middle shelf where there is no fan. One more inch of total depth would really free up this design a lot. The sides of the case are tapped and threaded for drawer rails, and sure, they sell drawer rails, but I already had rack slides. No normal sae or metric screws on earth fit these threads, so I had to tap them to 10-32. It was sad, but not hard. All 3 Drive shelves are easy to remove, but the sata ports on the MB were dangerously close to them, and two sata cable connectors died while trying to make things fit. These shelves are each isolated by large rubber grommets and it seemed like a really nice touch, probably helps with vibration some. Front panel buttons and USB connectors are very good quality. Paint finish is excellent. This would be a 100% perfect case if it were one inch deeper and used normal screws on the sides. ## 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.eg/products/130260100-technology-4u-rackmount-server-chassis-with-3-x-5-25](https://www.desertcart.com.eg/products/130260100-technology-4u-rackmount-server-chassis-with-3-x-5-25) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-06-02*