NZXT H2 Flow vs Rosewill Legacy W1-B Case Comparison

NZXT H2 Flow and Rosewill Legacy W1-B are both cases with the same Internal 2.5" Drive Bays (2) and Motherboard Compatibility (Mini ITX). The main differences are in Internal 3.5" Drive Bays, Front Panel I/O, Dimensions and Volume.

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NZXT H2 Flow	Rosewill Legacy W1-B
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 Rosewill
Model CI-H21FB-01	Model Legacy W1-B
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 ★★★★★ (1 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
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 4
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 242 mm x 361 mm x 356 mm
Volume 21 L	Volume 31 L
Max VGA length allowance 331 mm	Max VGA length allowance 320 mm
Expansion Slots 3	Expansion Slots 2
Back Connect Support No	Back Connect Support No