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Corsair

Corsair Obsidian 900D

The Corsair Obsidian 900D conforms to the E-ATX form factor and so can accommodate motherboards with form factors ATX, E-ATX, Micro-ATX, XL-ATX and Mini-ITX.

Its dimensions (LxWxH) are 640mm x 250mm x 680mm.

10

Corsair Obsidian 900D

help iconForm FactorE-ATXhelp iconTop Fans2
help iconMotherboard Form Factors
  • ATX
  • E-ATX
  • Micro-ATX
  • XL-ATX
  • Mini-ITX
help iconTop Fans Size200mm
help iconMaterialNot surehelp iconSide Fans4
help iconColorBlackhelp iconSide Fans Size120mm
help iconExpansion Slots10help iconRear Fans1
help icon5.25″ Drive Bays4help iconRear Fans Size140mm
help icon3.5″ Drive Bays9help iconHDD Fans3
help icon2.5" Drive Bays3help iconHDD Fans Size120mm
help iconTool-less Railsyeshelp iconBottom Fans1
help iconLength640mmhelp iconBottom Fans Size140mm
help iconWidth250mmhelp iconIO Display Panelyes
help iconHeight680mmhelp iconFront USB 2.0 Slots4
help iconMaximum Graphics Card Length450mmhelp iconFront USB 3.0 Slots2
help iconFront Fans3help iconeSATAno
help iconFront Fans Size120mmhelp iconAudio IOyes

Corsair Obsidian 900D compatibility review

The Corsair Obsidian 900D has a the E-ATX form factor. Extended ATX is a slightly deeper version of the ATX standard which is designed to provide all the advantages of ATX but with slightly more room. Using the E-ATX standard, the case can house motherboards and power supplies with form factors ATX, E-ATX, Micro-ATX, XL-ATX and Mini-ITX. The dimensions of the case itself (LxWxH) are 640mm x 250mm x 680mm.

The Corsair Obsidian 900D has ten expansion slots, so there is plenty of room for extra components, which may be a deciding factor when planning on the longevity and build type of a PC system. The case has four 5.25" drive bays, which is enough to house an optical drive and a couple of hard drives, while still having space for plenty more HDDs with the nine 3.5" drive bays that are also available. You can even install an SSD or laptop-sized HDD using one of the three 2.5" drive bays. Installation of hard drives into these drive bays is made all the more easier by screwless rails that allow tool-less mounting.

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