NZXT H2 Flow (2026) / Lian Li O11 Vision

NZXT H2 Flow (2026): CI-H21FB-01 · black; Mini-ITX case

Lian Li O11 Vision: O11VX (black), O11VW (white) and O11VC (Color Chrome). The O11 Vision Compact (O11VP), O11 Dynamic EVO and O11 Vision M are separate cases with different dimensions.

SpecificationNZXT H2 Flow (2026)Lian Li O11 Vision
Release year20262023
Model year2026 NZXT—
Dimensions and volume435 × 181 × 263 mm (height × width × depth); 20.7 L NZXT—
Weight4.55 kg; empty case NZXT—
ConstructionSteel; hybrid tempered-glass and mesh side panel NZXT—
MotherboardMini-ITX; no back-connect motherboard support NZXT—
Power supplySFX / SFX-L; up to 130 mm long

Not designed for an ATX power supply.

NZXT		—
Graphics card clearanceUp to 331 mm long, 65 mm thick and 150 mm wide NZXT—
Combined GPU and radiator fitFront AIO tube covers, fittings and cables can reduce available GPU width

Being shorter than 331 mm does not alone guarantee compatibility.

NZXT		—
CPU air cooler75 mm maximum height

NZXT's product guidance also calls for at least 10 mm between the cooler and glass.

NZXT		—
Front radiatorUp to 280 mm; combined radiator and fan thickness up to 60 mm NZXT—
Fan mountsFront: 2 × 120 or 2 × 140 mm; top: 2 × 120 mm NZXT—
Included fansTop: 2 × 120 mm F120Q Case Version exhaust fans; 3-pin DC

Not PWM fans or a guarantee of whole-system silence.

NZXT		—
Front connections2 × USB 3.2 Type-A; 1 × USB-C 3.2 Gen 2×2; headset jack NZXT—
Drive bays2 × 2.5-inch, up to 8.5 mm thick; no 3.5-inch bays NZXT—
Expansion and riser3 vertical slots; included 260 mm PCIe 5.0 ×16 riser

Three slots of width do not mean three separate PCIe connections.

NZXT		—
Case type—Dual-chamber tower case; steel, aluminium and tempered glass

The second chamber separates the power supply and cables from the main chamber, so only the components show behind the glass.

Lian Li
Glass panels—4 mm tempered glass on the front and side, 3 mm on top; three glass sides without corner pillars

The pillarless joint gives an uninterrupted view inside; because the front is glass there is no front intake, so air comes in from the side and bottom.

Lian Li
Dimensions—480 × 304 × 464.5 mm (D × W × H) Lian Li
Motherboard support—E-ATX (under 280 mm), ATX, Micro-ATX, Mini-ITX Lian Li
Component clearance—Graphics card up to 430 mm; CPU cooler up to 174 mm; ATX power supply up to 232 mm

Large triple-slot graphics cards and long power supplies fit; the cooler height suits most large dual-tower air coolers.

Lian Li
Fan positions—Side 3 × 120 or 2 × 140 mm; bottom 3 × 120 or 3 × 140 mm; rear 1–2 × 120 mm; up to 8 fans (11 with push-pull); no fans included

Fans must be bought separately; a typical layout pulls air in from the bottom and side and exhausts at the rear.

Lian Li
Radiator support—Side 360/280/240 mm; bottom 360/280/240 mm; rear 240/120 mm; up to 2 × 360 + 1 × 240 mm Lian Li
Storage—3 × 2.5-inch behind the motherboard tray; cage for 2 × 3.5-inch or 2 × 2.5-inch (5 in total) Lian Li
Expansion and vertical GPU—6+1 expansion slots; optional VG4-5 vertical GPU kit (up to 4-slot cards, with PCIe 5.0 riser cable)

The vertical kit is not in the box; it is bought separately to show the card facing the glass.

Lian Li
Front I/O—Power and reset buttons, 2 × USB 3.0, 1 × USB Type-C, audio jack

The Type-C speed is not stated by the manufacturer; the motherboard needs a matching internal USB-C header.

Lian Li
Other—Bottom dust filter; 27 mm feet; 1-year warranty Lian Li