Thermaltake Tower 900 Black Edition vs NZXT H2 Flow Case Comparison

Thermaltake Tower 900 Black Edition and NZXT H2 Flow are both cases with the same Internal 2.5" Drive Bays (2). The main differences are in External 5.25" Drive Bays, Internal 3.5" Drive Bays, Motherboard Compatibility and Front Panel I/O.

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Thermaltake Tower 900 Black Edition	NZXT H2 Flow
Prices (Change region) Out of Stock + $27.99 Shipping $229.99 Out of Stock Free shipping $329.99 Out of Stock Free shipping $725.59 - Buy now Show 1 more offers	Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14
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Brand Thermaltake	Brand NZXT
Model CA-1H1-00F1WN-00	Model CI-H21FB-01
Release Date 📅 December 2016	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (69 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 1	External 5.25" Drive Bays 0
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2	Internal 2.5" Drive Bays 2
Internal 3.5" Drive Bays 6	Internal 3.5" Drive Bays 0
Motherboard Compatibility ATX, EATX, Micro ATX, Mini ITX	Motherboard Compatibility Mini ITX
Front Panel I/O 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 483 mm x 423 mm x 752 mm	Dimensions 263 mm x 181 mm x 435 mm
Volume 154 L	Volume 21 L
Max VGA length allowance 400 mm	Max VGA length allowance 331 mm
Expansion Slots 8	Expansion Slots 3
Back Connect Support No	Back Connect Support No
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