NZXT H2 Flow vs AeroCool Mechatron Case Comparison

The main differences between NZXT H2 Flow and AeroCool Mechatron are in External 5.25" Drive Bays, Internal 2.5" Drive Bays, Internal 3.5" Drive Bays and Motherboard Compatibility.

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NZXT H2 Flow	AeroCool Mechatron
Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14	Prices (Change region) - Buy now
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Pangoly Score (How do we rate?) -	Pangoly Score (How do we rate?) 78
Brand NZXT	Brand AeroCool
Model CI-H21FB-01	Model Mechatron-Black Steel Edition
Release Date 📅 February 2026	Release Date 📅 January 2016
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (19 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 ►
Pros -	Pros A lot of space for big CPU coolers and long graphic cards Can hold water-cooling radiators in the top
Cons -	Cons Limited cable management Only 2 fans included
Type Mini ITX Tower	Type ATX Mid Tower
Color Black	Color Black
Includes Power Supply No	Includes Power Supply No
External 5.25" Drive Bays 0	External 5.25" Drive Bays 3
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2	Internal 2.5" Drive Bays 3
Internal 3.5" Drive Bays 0	Internal 3.5" Drive Bays 4
Motherboard Compatibility Mini ITX	Motherboard Compatibility ATX, Micro ATX
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 533 mm x 226 mm x 501 mm
Volume 21 L	Volume 60 L
Max VGA length allowance 331 mm	Max VGA length allowance 330 mm
Expansion Slots 3	Expansion Slots 7
Back Connect Support No	Back Connect Support No