Corsair Obsidian 900D CC-9011022-WW vs NZXT H2 Flow Case Comparison

The main differences between Corsair Obsidian 900D CC-9011022-WW and NZXT H2 Flow are in External 5.25" Drive Bays, Internal 2.5" Drive Bays, Internal 3.5" Drive Bays and Motherboard Compatibility.

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Corsair Obsidian 900D CC-9011022-WW	NZXT H2 Flow
Prices (Change region) Out of Stock Free shipping $369.99 - Buy now	Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14
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Brand Corsair	Brand NZXT
Model CC-9011022-WW CC900D	Model CI-H21FB-01
Release Date 📅 September 2013	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Motherboards ► Graphics Cards ► Power Supplies ► CPU Coolers ►	Compatible PC parts Motherboards ► Graphics Cards ► Power Supplies ► CPU Coolers ►
Type ATX Full Tower	Type Mini ITX Tower
Color Black	Color Black
Includes Power Supply No	Includes Power Supply No
External 5.25" Drive Bays 4	External 5.25" Drive Bays 0
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 0	Internal 2.5" Drive Bays 2
Internal 3.5" Drive Bays 9	Internal 3.5" Drive Bays 0
Motherboard Compatibility ATX, EATX, HPTX, Micro ATX, Mini ITX, XL ATX	Motherboard Compatibility Mini ITX
Front Panel I/O USB 2.0 Type A, USB 3.2 Gen 1 Type A	Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C
Dimensions 650 mm x 251 mm x 690 mm	Dimensions 263 mm x 181 mm x 435 mm
Volume 113 L	Volume 21 L
Max VGA length allowance 500 mm	Max VGA length allowance 331 mm
Expansion Slots 10	Expansion Slots 3
Back Connect Support No	Back Connect Support No
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Comparison and key differences summary

Reasons to buy the Corsair Obsidian 900D CC-9011022-WW:

+4 external 5.25" bays
+9 internal 3.5" bays
Additional VGA length allowance (+169.00mm)
+7 Expansion slots
Supports the following motherboard formats: ATX, EATX, HPTX, Micro ATX, XL ATX
Supports the following front panel USB ports: USB 2.0 Type A
Hugely more space available (+82% total case volume)