NZXT H2 Flow (2026) / Lian Li O11 Vision Compact

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

Lian Li O11 Vision Compact: O11VPX black / O11VPW white

SpecificationNZXT H2 Flow (2026)Lian Li O11 Vision Compact
Release year20262024
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		ATX, up to 220 mm Lian Li
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		—
Models—O11VPX (black, tinted glass); O11VPW (white, clear glass)

The white version has white grommets, thumbscrews and brackets.

Lian Li
Case type—Dual-chamber tower; front and side glass, swappable glass or mesh top

In the dual-chamber layout the PSU and cables sit in a separate compartment behind the motherboard, leaving only components visible in the main chamber.

Lian Li
Dimensions—447.5 (D) × 287.5 (W) × 446.4 (H) mm; 57.4 L Lian Li
Materials—Steel, aluminium; 3.0 mm (top) and 4.0 mm (side and front) tempered glass Lian Li
Motherboard support—E-ATX (under 280 mm), ATX, Micro-ATX, Mini-ITX; back-connect ATX and E-ATX

Back-connect boards move power and fan headers to the rear of the board for a cleaner front view.

Lian Li
Expansion slots—6 + 1 Lian Li
Storage—2 × 2.5" behind the motherboard tray; 2 × 3.5"/2.5" in the drive cage; up to 2 × 2.5" on the cable bar Lian Li
Fan support—Top 3 × 120 or 2 × 140 mm; side 3 × 120; bottom 3 × 120; rear 2 × 120 mm

With the mesh top up to 11 × 120 mm in total; in glass (Vision) mode up to 8 × 120 mm. The page lists no included fans.

Lian Li
Radiator support—Top 240/280/360 mm; side 240/360 mm; bottom 240/360 mm

One radiator per position.

Lian Li
Graphics card—Up to 408 mm long; removable anti-sag bracket for 278–408 mm cards Lian Li
CPU cooler—Up to 167 mm tall Lian Li
Front I/O—Power button (white backlight), 2 × USB 3.0, 1 × USB 3.1 Type-C, 1 × audio

The I/O sits in the case foot.

Lian Li