IW-R400-01N Open-Bay 4U Server Chassis Features: Flexible drive bays configuration for ODD, 2.5" and 3.5" HDD Supports easy-swap rear fan x 2 for upgrade Compatible with standard PS2 or mini-redundant power supply Expandable storage option with InWin storage kit GPU holder and adjustable card retainer supporting 350mm dual-slot PCIe cards x 4 Optional rear fan module for GPU Convertible to tower with chassis stands (optional) Lockable front door for data security Tool-free cover for easy installation and quick maintenance Specifications: Industry Standard EIA-RS310D M/B Form Factor ATX (12" x 9.6"), CEB (12" x 10.5"), EEB (12" x 13") Drive Bay External: 5.25" x 3, 3.5" x 1 Internal: 3.5" x 4, 2.5" x 1 Power Supply PS2 single PSU 550W/800W/1200W/1600W 1+1 CRPS 80 Plus Platinum Indicator Power status, HDD, LAN activity LEDs Front Control Panel Power switch, system reset, USB 2.0 x 2 Chassis Security Intrusion switch (optional) Cooling Fan 80 x 25mm PWM front fan x 2, 4500RPM 80 x 25mm PWM rear fan x 2 (optional), 4200RPM 80 x 25mm PWM rear fan x 2 (optional), 4500RPM Expansion Slot Full-height PCI slot x 8 Material Material: SGCC Thickness: 1.2mm Rail Kit Supports 28" tool-less & ball-bearing slide rails Product Dimensions (DxWxH; Chassis Only) 525x 430 x 174.8mm (20.7" x 16.9" x 6.9") Package Dimensions (DxWxH) 696 x 610 x 310mm Weight (Chassis Only) Net weight: 12.09kg Gross weight: 15.37kg Cubic Feet 4.65