Specifications
Model
InWin IW-R400N
Form factor
4U open-bay rackmount, EIA-RS310D 19 in cabinet
Motherboard support
ATX (12 x 9.6 in), CEB (12 x 10.5 in)
External bays
3 x 5.25 in, 1 x 3.5 in
Internal bays
3 x 3.5 in, or 2 x 3.5 in + 1 x 2.5 in
Expansion slots
8 full-height PCIe slots
Power supply options
PS2 single PSU, or 550/800/1200/1600 W 1+1 CRPS, 80 PLUS Platinum
Cooling
1 x 120 x 25 mm PWM front fan (3,500 RPM); 2 x 80 x 25 mm rear fans optional
Chassis security
Optional intrusion switch
Material
SGCC, 1.2 mm
Rail kit
28 in tool-less ball-bearing slide rails
Chassis dimensions
515 x 430 x 174.8 mm
Chassis weight
Net 11.5 kg / gross 14.7 kg
Overview
The InWin IW-R400N is a 4U open-bay rackmount chassis aimed at builders who need expansion room and standard drive bays rather than a hot-swap backplane. It provides three 5.25-inch bays, positions for four 3.5-inch drives, and eight full-height PCIe slots - enough for multi-GPU, multi-HBA or capture-heavy configurations.
Power can come from a conventional PS2 single supply or from 1+1 redundant CRPS modules at 550, 800, 1200 or 1600 W, all 80 PLUS Platinum. A 120 mm front fan is fitted as standard with two optional 80 mm rear fans, and an intrusion switch is available. It takes ATX and CEB boards.
Key Benefits
Eight full-height PCIe slots for multi-card builds. Three 5.25 in + four 3.5 in bays for storage and optical flexibility. CRPS options to 1600 W 1+1 for redundant power. Open-bay layout simplifies component access. 1.2 mm SGCC steel construction.
Applications
GPU and FPGA workstation servers, multi-HBA storage controllers, video capture and broadcast systems, and lab build platforms that need many expansion slots in a rackmount footprint.
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