Description
The SilverStone SST-RM400 stands as a cornerstone for industrial-grade computing, offering a robust 4U form factor built from 1.2mm SGCC steel. Designed to bridge the gap between high-density server needs and workstation flexibility, this chassis supports motherboards ranging from Mini-ITX to SSI-CEB. Its internal layout is optimized for thermal efficiency and component longevity, featuring a lockable front panel that secures critical power and reset controls while protecting the dual USB 3.1 Gen1 ports and drive bays from unauthorized access.
This product is for:
- IT Professionals building SMB servers requiring standard ATX or SSI-CEB motherboard compatibility.
- Video Production Studios needing rack-mounted workstations with full-height PCIe expansion capabilities.
- Industrial Automation Engineers seeking a durable 1.2mm SGCC steel chassis for harsh environments.
- Home Lab Enthusiasts constructing high-capacity NAS or virtualization nodes with up to 8 internal 3.5-inch drives.
- System Integrators requiring a chassis that supports both standard PS2 (ATX) and Mini Redundant power supplies.
Detailed specifications:
- Form Factor: 4U Rackmount
- Material: 1.2mm SGCC Steel
- Motherboard Support: SSI-CEB (12" x 10.5"), ATX, Micro-ATX, Mini-ITX
- Drive Bays: 3 x 5.25" external; 8 x 3.5" internal; 2 x 2.5" internal (up to 15mm); 1 x 2.5" or Slim ODD
- Expansion Slots: 7 standard size PCI / PCIe slots
- Cooling System: Front 120mm x 1 (included), 80mm x 1 (optional); Rear 80mm x 2 (1 x 80mm included)
- Power Supply Compatibility: PS2 (ATX) up to 160mm depth or Mini Redundant
- GPU Clearance: 220mm (standard) or 339mm (with 3.5" drive cage removed)
- CPU Cooler Height Limit: 148mm
- Front I/O: USB 3.1 Gen1 Type-A x 2
- Dimensions: 430mm (W) x 176mm (H) x 469mm (D)
Building in the SST-RM400 is a streamlined experience thanks to its spacious interior and logical component placement. The chassis accommodates CPU coolers up to 148mm in height, allowing for more substantial air-cooling solutions than typical 1U or 2U units. For storage-heavy builds, the eight internal 3.5-inch bays provide ample room for high-capacity arrays, while the three 5.25-inch bays offer the versatility to add hot-swap cages or optical drives. The inclusion of pre-drilled mounting holes ensures compatibility with SilverStone’s tool-less slide rails, simplifying rack integration and maintenance cycles.
Compared to standard 1U or 2U server cases, the SST-RM400 provides significantly better compatibility with off-the-shelf components like standard ATX power supplies and full-height expansion cards. While 1U units are restricted to low-profile hardware and specialized blowers, this 4U chassis utilizes standard 120mm and 80mm fans for quieter, more efficient cooling. It offers a more compact depth of 469mm compared to many enterprise-grade deep-rack chassis, making it suitable for short-depth racks and wall-mount cabinets without sacrificing SSI-CEB motherboard support.
Q: What is the maximum motherboard size supported by the SST-RM400?
A: The chassis supports motherboards up to the SSI-CEB standard, measuring 12 inches by 10.5 inches, as well as standard ATX, Micro-ATX, and Mini-ITX boards.
Q: Can I install a standard desktop power supply in this rackmount case?
A: Yes, the SST-RM400 supports standard PS2 (ATX) power supplies with a depth of up to 160mm, as well as Mini Redundant power supplies for increased uptime.
Q: Does the chassis include slide rails for rack mounting?
A: Slide rails are not included in the package; however, the chassis features reserved mounting holes specifically designed for SilverStone's compatible slide rail kits.
Q: How many hard drives can be installed simultaneously?
A: Out of the box, the chassis supports eight 3.5-inch internal drives, two 2.5-inch internal drives, and has three 5.25-inch external bays that can be converted for additional storage.
Q&A:
Q: What is the maximum length for graphics cards or expansion cards?
A: The chassis supports cards up to 220mm with all drive cages installed. By removing the 3.5-inch drive cage, the clearance increases to 339mm.
