NZXT H2 Flow vs Jonsbo U4 Pro MESH Black Case Comparison

NZXT H2 Flow and Jonsbo U4 Pro MESH Black are both cases with the same Internal 2.5" Drive Bays (2). The main differences are in Internal 3.5" Drive Bays, Motherboard Compatibility, Front Panel I/O and Dimensions.

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NZXT H2 Flow	Jonsbo U4 Pro MESH Black
Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14	Prices (Change region) There are no offers available in your selected region. Other merchants are available in another region. Out of Stock + €7.90 Shipping €84.80 Out of Stock Free shipping €117.44
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Brand NZXT	Brand Jonsbo
Model CI-H21FB-01	Model U4 Pro MESH Black
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 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 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 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 0	Internal 3.5" Drive Bays 1
Motherboard Compatibility Mini ITX	Motherboard Compatibility ATX, Micro ATX, 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, USB 3.2 Gen 2 Type C
Dimensions 263 mm x 181 mm x 435 mm	Dimensions 395 mm x 205 mm x 426 mm
Volume 21 L	Volume 34 L
Max VGA length allowance 331 mm	Max VGA length allowance 280 mm
Max VGA length allowance (w/o HDD cage) -	Max VGA length allowance (w/o HDD cage) 330 mm
Expansion Slots 3	Expansion Slots 7
Back Connect Support No	Back Connect Support No