--- product_id: 466515563 title: "Silverstone Technology RM21-304 2U Micro-ATX Rackmount Server Chassis with Four 3.5\" hot-swap Bays, SST-RM21-304" brand: "silverstone" price: "Β£507.15" currency: GBP in_stock: true reviews_count: 1 category: "Silver Stone" url: https://www.desertcart.co.uk/products/466515563-silverstone-technology-rm21-304-2u-micro-atx-rackmount-server-chassis store_origin: GB region: United Kingdom --- # 3 PWM fans for optimized airflow 4 hot-swap bays for 3.5"/2.5" drives Auto-lock handle for secure 2U rack mounting Silverstone Technology RM21-304 2U Micro-ATX Rackmount Server Chassis with Four 3.5" hot-swap Bays, SST-RM21-304 **Brand:** silverstone **Price:** Β£507.15 **Availability:** βœ… In Stock ## Summary > πŸš€ Elevate your data game with SilverStone’s powerhouse rackmount chassis! ## Quick Answers - **What is this?** Silverstone Technology RM21-304 2U Micro-ATX Rackmount Server Chassis with Four 3.5" hot-swap Bays, SST-RM21-304 by silverstone - **How much does it cost?** Β£507.15 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/466515563-silverstone-technology-rm21-304-2u-micro-atx-rackmount-server-chassis) ## 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€’ **Seamless Integration:** Compatible with Micro-ATX and Mini-ITX motherboards for versatile builds - β€’ **Tool-less Rack Mounting:** Ergonomic auto-lock handle and tool-less rails for quick, secure 2U installation - β€’ **Instant Drive Status Insight:** Independent LED indicators on each hot-swap bay for real-time monitoring - β€’ **Maximize Storage Flexibility:** Supports 4 SAS/SATA drives with blazing 6 Gb/s mini-SAS SFF-8087 backplane - β€’ **Effortless Cooling Efficiency:** Equipped with three 80x15mm PWM fans to keep your server cool under pressure ## Overview The SilverStone RM21-304 is a robust 2U rackmount server chassis designed for professional storage solutions. It features four hot-swappable 3.5"/2.5" drive bays with SAS/SATA 6 Gb/s support, three PWM fans for superior cooling, and compatibility with Micro-ATX and Mini-ITX motherboards. Its tool-less, auto-lock rack mounting system ensures quick and secure installation, making it ideal for data centers and IT professionals seeking reliable, flexible, and efficient server hardware. ## Description SilverStone's RM21-304 is a high performance storage Server Chassis designed for the professional storage environment. It is equipped with hard drive trays compatible with 2.5" or 3.5" drives and has fan assembly with motherboard support for up to Micro-ATX form factor. There are also flexible mounts to accommodate most 2U single/ 2U redundant server, PS2 (ATX) power supplies. RM21-304 also has ergonomic, tool-less rail* designs for easy rack mount integration. With an overall package designed for maximizing efficiency, flexibility, and durability, The RM21-304 is a great choice for professionals or data center engineers looking to build a storage Server. Review: All around ok - Case arrived as expected and works well. The only reason for 4 stars is the price. It seems a bit expensive for the quality and fitment. The buttons on the front are like one big sticker which is peeling off and will need to be glued....for $400 I would rather that not be the case. ## Features - Backplane support for 4 port SAS/ SATA drives and 6 GB/s mini-sas SFF-8087. Supports four 2.5"/3.5" Sas/SATA HDD/SSD - Includes three 80 x 15mm PWM fans - Independent drive status LED. Supports four low profile PCI/ PCIe Slots - Supports Micro ATX and Mini-ITX motherboards - Auto lock handle for Easy to fixed the 2U rack mount on the cabinet ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B7KPWB31 | | Best Sellers Rank | #62 in Computer Cases | | Brand | SilverStone | | Color | Black | | Compatible Devices | Server | | Cooling Method | Air | | Customer Reviews | 4.4 out of 5 stars 3 Reviews | | Enclosure Material | Metal | | Hard Disk Form Factor | 2.5 Inches | | Manufacturer | SilverStone Technology | | Material | Metal | | Motherboard Compatability | Micro ATX | | Number of Fans | 3 | | Supported Motherboard | Micro ATX | | UPC | 844761022112 | | Warranty Description | 1 year limited | ## Product Details - **Brand:** SilverStone - **Color:** Black - **Compatible Devices:** Server - **Cooling Method:** Air - **Fan Count:** 3 - **Hard Disk Form Factor:** 2.5 Inches - **Manufacturer:** SilverStone Technology - **Material:** Metal - **Motherboard Compatability:** Micro ATX - **UPC:** 844761022112 ## Images ![Silverstone Technology RM21-304 2U Micro-ATX Rackmount Server Chassis with Four 3.5" hot-swap Bays, SST-RM21-304 - Image 1](https://m.media-amazon.com/images/I/61Eh4ET5a3L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐ All around ok *by S***. on January 18, 2024* Case arrived as expected and works well. The only reason for 4 stars is the price. It seems a bit expensive for the quality and fitment. The buttons on the front are like one big sticker which is peeling off and will need to be glued....for $400 I would rather that not be the case. ## Frequently Bought Together - SilverStone Technology RM21-304 2U Micro-ATX Rackmount Server Chassis with Four 3.5" hot-swap Bays, SST-RM21-304 - SilverStone Technology RMS08-20 Tool-Less Ball Bearing Sliding Rail kit for rackmount Chassis, SST-RMS08-20, TAA Compliant - CORSAIR VENGEANCE DDR5 RAM 64GB (2x32GB) 5200MHz CL40-40-40-77 1.25V Intel XMP Desktop Computer Memory - Black (CMK64GX5M2B5200C40) --- ## 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.co.uk/products/466515563-silverstone-technology-rm21-304-2u-micro-atx-rackmount-server-chassis](https://www.desertcart.co.uk/products/466515563-silverstone-technology-rm21-304-2u-micro-atx-rackmount-server-chassis) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-28*