

SilverStone RM51 5U Rackmount Server Chassis, SSI-EEB Support, 360mm Liquid Cooling, 8 PCI Slots, Black | SST-RM51
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Description
The RM51 is not your typical server case. By utilizing two 180mm Air Penetrator fans, it creates a focused, high-pressure airflow pattern that moves massive volumes of air through the chassis, preventing hot spots around your GPU and CPU. For users pushing their systems to the limit, the chassis also offers excellent liquid cooling support, allowing you to mount up to 360mm radiators. This capability ensures that even overclocked components or high-density server builds stay within safe thermal limits.
Professional Versatility
Designed for flexibility, the RM51 supports a wide range of motherboard sizes, including larger SSI-EEB boards, giving you the freedom to choose server-grade hardware without limitation. It is fully compatible with both standard ATX and SFX power supplies, allowing you to optimize your build for your specific power requirements. The rackmount-ready design features a clean, professional aesthetic, suitable for everything from a home lab to a commercial data center rack.
Builder-Oriented Convenience
SilverStone has integrated several features to make installation and maintenance efficient. The case includes support for multi-drive configurations (3.5" HDDs and 2.5" SSDs), making it a great choice for storage-heavy servers. Its modular internal layout and tool-less access panels streamline the building process, allowing you to perform rapid hardware swaps or upgrades without needing to remove the entire chassis from the rack.
Specifications
| SKU | ATX-SILVERSTONE SST-RM51 |
|---|---|
| Extra | Side switch for chassis intrusion security |
| Material | Steel |
| Dimension | Incl. rear fan cage: 440mm (W) x 220mm (H) x 530mm (D), 51.3 liters Excl. rear fan cage: 440mm (W) x 220mm (H) x 485mm (D), 46.95 liters Incl. rear fan cage: 17.3" (W), 8.66" (H), 20.87" (D) Excl. rear fan cage: 17.3" (W), 8.66" (H), 19.1" (D) |
| Drive Bay | Internal 3.5" x 2 (compatible with 2.5" x 3) + 3.5" x 2 (compatible with SFX PSU) 2.5" x 4 |
| Model No. | SST-RM51 |
| Net Weight | 10.6 kg |
| Motherboard | SSI-EEB, SSI-CEB, Extended ATX, ATX, Micro-ATX, Mini-ITX |
| Power Supply | Primary PSU slot: PS2 (ATX) / Mini Redundant Secondary PSU slot: SFX (occupies 3.5" bracket) |
| LED Indicator | Power status x 1 HDD activity x 1 LAN activity x 2 |
| Cooling System | Front 120mm x 3 / 180mm x 2 Rear Rear I/O: 120mm x 1 / 140mm x 1 Rear fan cage: 80mm x 2 Radiator support Front 120mm x 3 / 120mm x 1 + 240mm x 1 / 360mm x 1 (120mm x 3) / 360mm x 1 (180mm x 2) Rear 120mm x 1 |
| Expansion Slot | 8 |
| Expansion Card | Length: 455mm (without installing front fans and radiators) Width w/ expansion card retainer: 157mm Width w/o expansion card retainer: 198mm |
| Front I/O Port | USB Type-C x 1 USB 3.0 x 2 |
| Limitation Of PSU | 160mm~190mm (Removal of 3.5" drive cage eliminates PSU depth limitation) |
| Chassis Form Factor | 5U |
| Limitation Of CPU Cooler | Height w/ expansion card retainer: 181mm Height w/o expansion card retainer: 192mm |










