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Supermicro CSE-731I-300B mATX Mini Tower Server Chassis 300W External With Rear Pwn 9CM Fan Black

This item is warranted by the product manufacturer only.
Supermicro CSE-731I-300B mATX Mini Tower Server Chassis 300W External With Rear Pwn 9CM Fan Black - 1
Actual product may not be exactly as shown.
Supermicro CSE-731I-300B mATX Mini Tower Server Chassis 300W External With Rear Pwn 9CM Fan Black - 51394_l.jpg Customer Photos (0)
Reg. Price: $165.60  CAD
This Product is available in 1 to 3 Weeks

This product is available but currently we do not have stock. Notify me if this product is available again.
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   Shipping Weight:   20.2 lbs
   Part #: CSE-731i-300B
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Features    [ Edit | History ]
Quick Specs:
Package Contents
  • SuperChassis SC731i-300B Chassis
  • 1 x Front Panel Cable
  • 1 x 9 cm PWM Cooling Fan
  • 4 x SC731 HDD Tray
  • 1 x 300W ATX Power Supply
Motherboard Supported Micro ATX
Weight (Approximate) 16 lb
Color Black
Form Factor Tower
Height 14.3"
Width 7.3"
Depth 16.8"
Green Compliant Yes
Green Compliance Certificate/Authority 80 Plus
Number of Fans Supported 2
Number of Fans Installed 1
Number of External 3.5" Bays 1
Number of External 5.25" Bays 2
Number of Power Supplies Supported 1
Number of Power Supplies Installed 1
Number of Internal 3.5" Bays 4
Power Supply Wattage 300 W
Number of Total Expansion Bays 7
Number of Total Expansion Slots 4
Total Number of USB Ports 2

Specifications    [ Edit | History ]
     Number of External 3.5" Bays: 1
     Number of External 5.25" Bays: 2
     Number of Internal 3.5" Bays: 4
     Number of Total Expansion Bays: 7
General Information  
     Brand Name: Supermicro
     Manufacturer: Supermicro Computer, Inc
     Manufacturer Part Number: CSE-731I-300B
     Manufacturer Website Address:
     Product Line: SuperChassis
     Product Model: SC731i-300B
     Product Name: SC731i-300B Chassis
     Product Type: Computer Case
I/O Expansions  
     Number of Total Expansion Slots: 4
     Front USB: Yes
     Total Number of USB Ports: 2
     Green Compliance Certificate/Authority: 80 Plus
     Green Compliant: Yes
     Package Contents:
  • SuperChassis SC731i-300B Chassis
  • 1 x Front Panel Cable
  • 1 x 9 cm PWM Cooling Fan
  • 4 x SC731 HDD Tray
  • 1 x 300W ATX Power Supply

Physical Characteristics  
     Color: Black
     Depth: 16.8" (425.5 mm)
     Form Factor: Tower
     Height: 14.3" (362 mm)
     Weight (Approximate): 7.26 kg
     Width: 7.3" (184.2 mm)
Power Description  
     Input Voltage: 110 V AC
220 V AC
     Number of Power Supplies Installed: 1
     Number of Power Supplies Supported: 1
     Power Supply Wattage: 300 W
Technical Information  
     Motherboard Supported: Micro ATX
     Number of Fans Installed: 1
     Number of Fans Supported: 2

SuperMicro CSE-731i-300B Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding SuperMicro CSE-731i-300B reviews.
Experience: 3 Weeks
 Verified Owner
Small footprint and weight.
Sturdy, super silent, yet great air flow.
High effiency power supply enough for an i7-2600.
Great tool-less design.
Ton of accessories.
Some may consider it a bit expensive.
More air flow, more noise, please.
Box dimension (roughly) : 60x30x55 CM. With the hardware mentioned below it roughly weights 30 pounds.

Once again, an amazing chassis from Supermicro (PMed to $93.34 ). The build quality is second to none, the footprint and weight get as small as it can possibly be. All accessories you could possibly need are included. Even the power cord feels sturdy.

I paired this chassis with a desktop grade ASUS motherboard (P8H67-M Pro), 2*4GB of memory (G.Skill Ripjaws DDR3-1333), 2*1TB Caviar Black hard drives and a Core i7-2600 processor. As such, yes, Supermicro's super efficient power supply is more than enough for such a build (ran Prime95 for roughly 12 hours).

Included power supply connectors : 4*SATA power cables, 2*Molex 4-pin power cables, 1*4-pin (FOUR PINS) ATX power cable, 1*24-pin power cable (non 20+4) and 2 other connectors that looks like 4-pin fan female connectors. As such, you get all connectors you'd need to plug in four hard drives but, beware, unlike what Supermicro advertises, the power supply has a unique 4-pin ATX power connector (not a 4+4 pins). Most motherboards (including the P8H67-M Pro) supports only plugging in the 4 pins, but to be safe, you may want to add a "nGear 4 Pin P4 Power to 8 Pin Epc Power Adapter Cable" (PM to $1.71).

The rotating hard drives bay is quite handy. Not only does it really ease up the replacement of hard drives, but it makes assembly just way easier as the chassis is very cramped.

Supermicro is true to word, the included fan is indeed really, really silent. All together, it is quieter than my Noctua's PC. And it does push a fair amount of air. I got to say that I'd like to see Supermicro releasing a version with a slightly louder, yet more powerful fan. This one is just uselessly silent, even if you don't plan to throw it in a datacenter.

N.B.1 : Raising nuts for the motherboard are useless for most boards.
N.B.2 : The included ty-raps taht may be glued to the chassis aren't long enough to accommodate a lot of cables. This being said, cable management is very, very though even though Supermicro includes all necessary accessories.
N.B.3 : The tool-less design is a huge success. Note that they even include screws to screw in the hard drives to secure them, in case you got to ship the server (tool-less hard drive cages are known to fall apart during shipment).
N.B.4 : On a non-Supermicro motherboard, I can't seem to be able to have the front USB connectors and the front LEDs to work!
N.B.5 : Supermicro uses a proprietary connector for the motherboard connections (Power_SW, Reset...). The conversion cable is included.

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Messages about Supermicro CSE-731I-300B mATX Mini Tower Server Chassis 300W External With Rear Pwn 9CM Fan Black

Support mini-itx? (Kirk_H- May 23, 12, 2 Replies) Read this message
Will this fit an Hyper 212+? (Bambell- May 11, 11, 2 Replies) Read this message

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Product Warranty
First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.
Super Micro Computer, Inc.
980 Rock Ave. San Jose, CA 95131, USA
Tel: +1-408-503-8000
Fax: +1-408-503-8008
Tech Support:
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While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages, from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

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