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SuperChassis 731i-403B

Super Micro Computer, Inc.
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Key Features
    1. 90° Rotatable HDD Cage
    2. Whisper-Quiet (<25dB)
    3. Kensington Lock Support
    4. Front I/O Supports 2x USB 3.0
    5. 1x Optional Front Intake 8cm (2800 RPM) PWM Fan
    6. Mini-Tower Chassis Supports Micro-ATX Motherboard, Size 9.6" x 9.6"
    7. 400W Gold Level Certified High-Efficiency Power Supply
    8. 1x Rear 9cm (2050 RPM) PWM Fan
    9. 2x 5.25" External HDD Drive Bays & 4x 3.5" Internal HDD Drive Bays


Product SKUs
  • SuperChassis 731i-403B
Form Factor
  • Mini-Tower Chassis - supports for maximum motherboard sizes of 9.6" x 9.6"
    Processor Support
  • Dual Intel® and AMD processors
    • 14.25" (362 mm)
    • 7.25" (184 mm)
    • 16.75" (425 mm)
    Net Weight
    • 16 lbs (7.26 kg)
    Gross Weight
    • 20 lbs (9.07 kg)
    Packaging (W x H x L)
    • 11" (279 mm) x 20" (508 mm) x 21" (533 mm)
    Available Color
    • Black
    Expansion Slots
    • 4 full-height & full-length expansion slot(s)
    Drive Bays
    • 2 x 5.25" drive bay
    • 4 x 3.5" fixed drive bay
    Front Panel
    • Power On/Off button
    • 1 Network Activity LEDs
    • HDD activity LED
    • Power LED
    • System Overheat LED
    • 2x USB 3.0 Port(s)
    Motherboard (for CSE- 731i-403B)
    X11SSH-F X11SSH-LN4F
    X11SSL-F X11SSL
    X11SSM-F X11SSM
    X11SSZ-F X11SSZ-QF
    X11SAE-M X11SSQ-L
    C7C242-CB-M C9Z390-CG-IW
    C7B360-CB-MW C7C242-CB-MW
    C7Z370-CG-IW C7B360-CB-ML
    C7B360-CB-M X11SCZ-Q
    X11SSL-CF X11SSL-nF
    Servers (for CSE- 731i-403B)
    Systems Cooling
    • 1 x 9cm (2050 RPM) rear exhaust fan(s)
    • Optional 1 x 8cm (front) cooling fan
    Operating Environment (System)
    Operating Temperature Range
    • 5°C - 35°C (41°F - 95°F)
    Non-Operating Temperature Range
    • -40°C - 70°C (-40°F - 158°F)
    Operating Relative Humidity Range
    • 8% - 90% (non-condensing)
    Non-Operating Relative Humidity Range
    • 5% - 95% (non-condensing)
    Power Supply
    400W ATX/PS2 Multi-output Power Supply. Super quiet operation with 12cm cooling fan and 80plus gold certification.
    Total Output Power and Input
    • 400W with Input 100 - 240Vac
    AC Input Frequency
    • 50-60Hz
    Dimensions (L x W x H)
    • 140 x 150 x 86 mm
    Output Type
    • 24pin ATX
    • Max: 0.3A / Min: 0A
    • Max: 18A / Min: 1A (100Vac - 240Vac)
    • Max: 18A / Min: 0.2A (100Vac - 240Vac)
    • Max: 22A / Min: 0.5A
    • Max: 24A / Min: 0.5A
    • Max: 3A / Min: 0A
    • Gold Certified  Gold Certified
    Regulatory (Power Supply)
    Power Supply Safety / EMC
    • CE/EMC
    • UL/CB
    Standard Parts List
      Part Number Qty Description
    Cable(S)CBL-0260L1US power cord 18AWG 6ft, PBF (default for low watt)
    Cable(S)CBL-CUSB-09981USB 3.0(F) Type A 2x to USB3.0 20pin,48CM,26/30AWG
    Fan(s)FAN-0108L4192X25MM 4-PIN PWM REAR EXT FAN FOR SC731
    Drive Tray(s)MCP-220-73101-0B4SC731 Tool-less Internal 3.5inch HDD Tray
    Part(s)MCP-110-00033-0N 2Binding Head Screw (with teeth) #632*4.5L
    Power Supply & AccessoryPWS-403-PQ1PS2/ATX 400W Multi-output power supply 80Plus gold,RoHS

    Optional Parts List
      Part Number Qty Description
    Fan Kit FAN-0113L4 - 80X25MM 2.8K RPM 4-PIN PWM Fan For SC731
    Peripheral Drive(s) DVM-SONY-DVDRW24-HBT - Black SONY 5.25" 24X DVD-RW, SATA Drive
    Peripheral Drive(s) DVM-LITE-DVDRW24-HBT - Black LITE-ON 5.25" 24X DVD-RW SATA Drive
    Peripheral Drive(s) DVM-LITE-DVDRW22-HB - Black LITE-ON 5.25" 22X DVD-RW IDE Drive
    Peripheral Drive(s) DVM-LITE-DVD18-HBT - Black LITE-ON 18X DVD-ROM SATA Drive
    HDD Tray Converter MCP-220-73102-0N - 2.5" to 3.5" SSD/HDD Adapter Tray for 731, 732, DS3, 842
    Information in this document is subject to change without notice.
    Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.