NZXT H2 Flow vs BitFenix Colossus Case Comparison

NZXT H2 Flow and BitFenix Colossus are both cases with the same Motherboard Compatibility (Mini ITX). The main differences are in External 5.25" Drive Bays, Internal 2.5" Drive Bays, Internal 3.5" Drive Bays and Front Panel I/O.

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NZXT H2 Flow	BitFenix Colossus
Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14	Prices (Change region) - Buy now
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Brand NZXT	Brand BitFenix
Model CI-H21FB-01	Model BFC-CLI-300-KKLS1-RP
Release Date 📅 February 2026	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (7 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 Mini ITX Tower	Type Mini ITX Tower
Color Black	Color Black/White
Includes Power Supply No	Includes Power Supply No
External 5.25" Drive Bays 0	External 5.25" Drive Bays 1
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2	Internal 2.5" Drive Bays 8
Internal 3.5" Drive Bays 0	Internal 3.5" Drive Bays 5
Motherboard Compatibility Mini ITX	Motherboard Compatibility Mini ITX
Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C	Front Panel I/O USB 3.2 Gen 1 Type A
Dimensions 263 mm x 181 mm x 435 mm	Dimensions 312 mm x 400 mm x 464 mm
Volume 21 L	Volume 58 L
Max VGA length allowance 331 mm	Max VGA length allowance 180 mm
Max VGA length allowance (w/o HDD cage) -	Max VGA length allowance (w/o HDD cage) 320 mm
Expansion Slots 3	Expansion Slots 2
Back Connect Support No	Back Connect Support No