--- product_id: 413622880 title: "Silverstone Technology RM43-320-RS 4U 20-Bay 2.5\" / 3.5\" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS" brand: "silverstone" price: "£923.97" currency: GBP in_stock: true reviews_count: 9 category: "Silver Stone" url: https://www.desertcart.co.uk/products/413622880-silverstone-technology-rm43-320-rs-4u-20-bay-2-5 store_origin: GB region: United Kingdom --- # 12 Gb/s Mini-SAS HD interface 20 hot-swap bays Tool-less ball bearing sliding rails Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS **Brand:** silverstone **Price:** £923.97 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your storage game with SilverStone’s powerhouse chassis—where capacity meets speed and seamless integration! ## Quick Answers - **What is this?** Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS by silverstone - **How much does it cost?** £923.97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/413622880-silverstone-technology-rm43-320-rs-4u-20-bay-2-5) ## 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 - • **Massive 20-Bay Storage:** Scale your data center with 20 hot-swappable 2.5"/3.5" SAS/SATA HDD/SSD trays for ultimate flexibility and expansion. - • **Pro-Grade Compatibility:** Supports E-ATX/SSI-EEB motherboards and flexible PSU mounts, perfect for professional-grade server builds and future-proof setups. - • **Blazing Fast SAS Interface:** Leverage the 12 Gb/s Mini-SAS HD SFF-8643 backplane for lightning-quick data throughput and seamless RAID integration. - • **Effortless Rack Integration:** Tool-less ball bearing sliding rails and auto-lock handles make installation and maintenance a breeze—no downtime, just uptime. - • **Optimized Cooling Performance:** Equipped with three 120mm PWM hot-swappable fans designed for high airflow and quiet operation (upgradeable for silence). ## Overview The SilverStone RM43-320-RS is a robust 4U rackmount server chassis designed for professional storage environments, featuring 20 hot-swappable 2.5"/3.5" drive bays, a high-speed 12 Gb/s Mini-SAS HD SFF-8643 interface, and tool-less ball bearing sliding rails for easy rack installation. It supports large motherboards up to E-ATX/SSI-EEB, includes three PWM-controlled 120mm fans for efficient cooling, and offers auto-lock handles for secure chassis fixation—ideal for data centers and pro-consumer NAS builds. ## Description SilverStone’s RM43-320-RS is a high performance storage server chassis designed for the professional storage environment. It is well-equipped with hard drive trays compatible with 3.5" drives, motherboard support of up to E-ATX / SSI-EEB form factor, flexible mounts to accommodate ATX (PS2) / Mini Redundant power supplies and fan assembly with 3 x 120mm PWM ball bearing fans. RM43-320-RS has also included a tool-less ball bearing sliding rail kit for a simple server rack integration and auto-lock handles to convenient fixate the chassis once integrated. With an overall package designed for maximizing efficiency, flexibility, and durability, the RM43-320-RS is a great choice for professionals or data center engineers looking to build a storage server. Review: Great Case - I had a Fractal Define 7 XL that had 18 hard drives installed. I needed more room in my server rack, so I bought this horizontal 4u case and transferred all hardware to it. I was able to install a GPU, 1x Raid card, and 1x SAS expander. The SAS expander and raid card connected to the Silerstone backpane over SAS SFF-8643 toSFF-8087 cables. Was able to restore all my RAID arrays on 18 drives even though I was now going through the backpane in the case. It's actually 5 different backpanes, by the way. Each backplane has two molexes, but only one is required per backplane. The second one is for redundant power from the second PSU if you use one. The fans are 128x38mm wide. Typically, consumer case fans are only 25mm wide. However, I was able to fit 3 Noctua 128mmx25mm fans in place of the 38mm ones easily, but I couldn't use the 4pins on the Noctuas in the "hot swappable" ports. They seem to have keyed the connector slightly different than typical. However, the backpanes in the case have about 10,000 fan headers, so I was easily able to just plug it into one of those and it's still "hot-swappable". I'm seriously wondering WHY there is so many 4pin headers on the backpanes. Jesus. Could have easily lived with less so you didn't need 2 molexs, but oh well, it's cool. I replaced the included fans, because they are very loud. They put out like a jet turbine, but were a little too loud for my liking (typical high performance server grade fans). Sticking some Noctua ones in their place has made it silent. I'm keeping an eye on SSD/HD temps, and so far so good. The case will only support a heatsink 148mm tall. I could not use the Noctua NH-D15 I had in my Fractal case. I bought a Noctua NH-D12L and it fits very nicely. Temps are fine. I have purchased server cases from other brands before and in comparison, this one is very nice. Silverstone almost always produces good products and they always have weird parts, too, if you need them. (Picture has one bad drive in it. Showing up a red led to indicate it's bad. Was just testing that) Review: Finally a good NAS server chassis - I have been looking for years for an upgraded chassis like this with 20+ bays. Everywhere online points to old supermicro or chenbro cases. Which are either impossible to find now, way to expensive for what it is, or wont fit more consumer grade hardware (ATX psu). Norco has bad reviews. 45drives is out of their minds with cost. So that leads me here. FINALLY a company making NAS cases for the pro-consumer market. So far everything is in and running great. Things to note- The stock fans are airplanes so consider noctua industrial fans if that matters to you, yes the average Temps went up a few degrees but still well within limits. Backplanes use a SAS connector, you will need an HBA. I picked up a used one on ebay for around $130 The drive trays are metal, so consider using something like kapton tape to insulate them as the drive PCBs on the drives are VERY close to touching them, at least with western digital drives. ## Features - Backplane support for 20 port SAS / SATA drives and 12 Gb/s Mini-SAS HD SFF-8643 + SGPIO - Supports twenty 2.5"/3.5" SAS/SATA HDD/SSD hot-swap trays - Ball bearing sliding rails included for simple server rack integration - Includes three 120mm x 38mm hot-swappable PWM fans - Auto lock handle for convenient fixation of chassis into rack cabinet ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09T93LDJ6 | | Antenna Location | Business | | Best Sellers Rank | #64 in Computer Cases | | Brand | SilverStone | | Case Type | Integrated | | Color | Silver | | Compatible Devices | Server | | Cooling Method | Air | | Customer Reviews | 4.3 out of 5 stars 21 Reviews | | Enclosure Material | Metal | | Hard Disk Form Factor | 2.5 Inches | | Internal Bays Quantity | 20 | | Item Dimensions D x W x H | 17.4"W x 6.89"H | | Item Weight | 16.2 Kilograms | | Manufacturer | SilverStone Technology | | Material | Metal | | Mfr Part Number | RM43-320-RS | | Model Name | SST-RM43-320-RS | | Model Number | RM43-320-RS | | Motherboard Compatability | Extended ATX, ATX, Micro ATX, Mini ITX | | Number of Fans | 3 | | Other Special Features of the Product | 20 Hot-Swap Drive Bays, Tool-Less Rack Integration, Pre-Installed PWM Fans, E-ATX/SSI-EEB Motherboard Support, Auto-Lock Handle, Independent Drive Status LEDs | | Power Supply Mounting Type | Rear Mount | | Recommended Uses For Product | Business | | Supported Motherboard | Extended ATX, ATX, Micro ATX, Mini ITX | | Total USB 3.0 Ports | 1 | | UPC | 844761024833 | | Unit Count | 20 Count | | Warranty Description | 1 year limited | ## Product Details - **Brand:** SilverStone - **Case Type:** Integrated - **Color:** Silver - **Cooling Method:** Air - **Item Weight:** 16.2 Kilograms - **Material:** Metal - **Model Name:** SST-RM43-320-RS - **Motherboard Compatability:** Extended ATX, ATX, Micro ATX, Mini ITX - **Power Supply Mounting Type:** Rear Mount - **Recommended Uses For Product:** Business ## Images ![Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS - Image 1](https://m.media-amazon.com/images/I/61QQr+QrAgL.jpg) ![Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS - Image 2](https://m.media-amazon.com/images/I/61udXoIevGL.jpg) ![Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS - Image 3](https://m.media-amazon.com/images/I/518BGbY9s+L.jpg) ![Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS - Image 4](https://m.media-amazon.com/images/I/41-OaJoLC1L.jpg) ![Silverstone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS - Image 5](https://m.media-amazon.com/images/I/81IRDwtimKL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: What does "*limited to use standalone peripheral (molex) 4pin cable to connect to each peripheral (molex) 4pin port from psu" mean (documentation)?** A: It means you should connect each peripheral (molex) connector with one single cable from the power supply. So you should have two separate cables from the power supply connecting to the two peripheral (molex) connectors on RM43-320-RS's backplane directly. Do not connect both connectors on the backplane with just one cable! **Q: Do you need to plug in both 4pin molex connectors per backplane?** A: Yes you do. **Q: What CPU cooler are you using for this? Does the NH-D12 fit?** A: The RM43-320-RS can fit CPU cooler up to 148mm in height. According to Noctua's product page, the NH-D12L is 145mm tall so yes, it will fit in the case. **Q: I see the that the chassis supports up to 148mm clearance for cpu cooler, can a 151mm cooler be made to fit in here?** A: Probably not, we set the 148mm limit because that's all the room available for it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Case *by E***N on July 11, 2023* I had a Fractal Define 7 XL that had 18 hard drives installed. I needed more room in my server rack, so I bought this horizontal 4u case and transferred all hardware to it. I was able to install a GPU, 1x Raid card, and 1x SAS expander. The SAS expander and raid card connected to the Silerstone backpane over SAS SFF-8643 toSFF-8087 cables. Was able to restore all my RAID arrays on 18 drives even though I was now going through the backpane in the case. It's actually 5 different backpanes, by the way. Each backplane has two molexes, but only one is required per backplane. The second one is for redundant power from the second PSU if you use one. The fans are 128x38mm wide. Typically, consumer case fans are only 25mm wide. However, I was able to fit 3 Noctua 128mmx25mm fans in place of the 38mm ones easily, but I couldn't use the 4pins on the Noctuas in the "hot swappable" ports. They seem to have keyed the connector slightly different than typical. However, the backpanes in the case have about 10,000 fan headers, so I was easily able to just plug it into one of those and it's still "hot-swappable". I'm seriously wondering WHY there is so many 4pin headers on the backpanes. Jesus. Could have easily lived with less so you didn't need 2 molexs, but oh well, it's cool. I replaced the included fans, because they are very loud. They put out like a jet turbine, but were a little too loud for my liking (typical high performance server grade fans). Sticking some Noctua ones in their place has made it silent. I'm keeping an eye on SSD/HD temps, and so far so good. The case will only support a heatsink 148mm tall. I could not use the Noctua NH-D15 I had in my Fractal case. I bought a Noctua NH-D12L and it fits very nicely. Temps are fine. I have purchased server cases from other brands before and in comparison, this one is very nice. Silverstone almost always produces good products and they always have weird parts, too, if you need them. (Picture has one bad drive in it. Showing up a red led to indicate it's bad. Was just testing that) ### ⭐⭐⭐⭐⭐ Finally a good NAS server chassis *by N***R on July 28, 2022* I have been looking for years for an upgraded chassis like this with 20+ bays. Everywhere online points to old supermicro or chenbro cases. Which are either impossible to find now, way to expensive for what it is, or wont fit more consumer grade hardware (ATX psu). Norco has bad reviews. 45drives is out of their minds with cost. So that leads me here. FINALLY a company making NAS cases for the pro-consumer market. So far everything is in and running great. Things to note- The stock fans are airplanes so consider noctua industrial fans if that matters to you, yes the average Temps went up a few degrees but still well within limits. Backplanes use a SAS connector, you will need an HBA. I picked up a used one on ebay for around $130 The drive trays are metal, so consider using something like kapton tape to insulate them as the drive PCBs on the drives are VERY close to touching them, at least with western digital drives. ### ⭐⭐⭐ Better than some of the alternatives, but it still has a lot of room for improvement. *by K***A on October 26, 2022* Usually I try and buy Silverstone chassis when i'm looking for a nice aluminum / solid build. I've built HTPCS and numerous servers out of them and look forward to new designs in the future. With continued expansion of data storage in my homelab I decided to give this chassis a chance. There's a bunch of things they've done well with this case, but there are just as many issues that I ran into. So i'll just put pros and cons and let you take from it what you will. PROS: * Pricing - It's competitive, though more expensive than some of the other competitors, I would argue it's likely to be more sturdy and most importantly I believe the backplane will be more reliable. * Spacious motherboard cavity - allows for cabling without a super cramped feel * Sturdy Construction - The unit is built well for chassis in the price range. While some enterprise products are more robust they're also multiples in cost. This is perfect for homelab, small business use. * Relatively quiet - The system is very quiet compared to others in this category, the three pwm fans are a good touch. * Caddies are solidly constructed CONS: * When plugging in your molex connectors into the chassis it becomes a tight fit with placement of the fan (see pic). * Front panel (power panel) constantly tried to pop off (Sticker / label covering). * Rails - These just plain suck. I've had them on other cases and thought they were fixed, they're not. They jam and if you aren't careful you'll find hundreds of bearing sized steel balls all over your rack and floor. That's no bueno! * No rear fans included - This may actually be neutral. It's possible that the existing fans push enough space out of the perforations * Rack Screw - The post screws for the rack had a lot of imperfections to include metal stamping debris stuck in the heads. Two screws were this way fortunately there were two extras and it balanced out. * Rails are on bottom of chassis not middle - this may not be a true con, but i've never experience this sort of placement and I wonder about balance / stability. I'm sure it's noted her but make sure not to connect more than one backplane to a single PSU cable. In my case 4 molex cable from the power supply (each with 4 plugs, only two used) because the backplanes are actually pulling power for 4 drives. Ultimately I'm returning this case due to the bad rail system and the issues that it poses in my installation. If Silverstone redesigned their rails and maybe adjusted the backplanes / provided whips to put the plugs into the main cavity, I would consider brining one of these back into use. ## Frequently Bought Together - SilverStone Technology RM43-320-RS 4U 20-Bay 2.5" / 3.5" HDD/SSD rackmount Storage Server Chassis with Mini-SAS HD SFF-8643 12 Gb/s Interface, SST-RM43-320-RS - LSI 9300-16i 16-Port 12Gb/s SAS Controller HBA Card with P16 IT Mode for ZFS TrueNAS unRAID - OIKWAN Internal Mini SAS to Mini SAS Cable, SFF-8643 to SFF-8643, Compatible with RAID or PCI Express Controller (1.6FT/0.5M) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/413622880-silverstone-technology-rm43-320-rs-4u-20-bay-2-5](https://www.desertcart.co.uk/products/413622880-silverstone-technology-rm43-320-rs-4u-20-bay-2-5) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-26*