NZXT H2 Flow (2026) / Fractal Design Era 2

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

Fractal Design Era 2: Era 2 Mini-ITX case; Silver (FD-C-ERA2N-01), Midnight Blue and Charcoal Gray. The original Era is a separate model.

SpecificationNZXT H2 Flow (2026)Fractal Design Era 2
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		SFX or SFX-L

GamersNexus says SFX-L significantly reduces cable space and recommends standard SFX.

Fractal Design
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		—
Motherboard and form factor—Mini-ITX; 18.97 L volume

A small-form-factor case that accepts only Mini-ITX motherboards.

Fractal Design
Graphics card—Up to 326 mm long, 137 mm tall, 48 mm thick; 3 expansion slots; pre-installed PCIe 4.0 riser cable

Fractal says the slidable central wall gives 15 mm of internal flexibility. GamersNexus notes that in wall position 3 GPU thickness rises to 63 mm (3.1 slots) while the CPU cooler limit drops to 55 mm.

Fractal Design
CPU cooler and radiator—Air cooler up to 70 mm; 120, 140, 240 or 280 mm radiator on top

The 70 mm limit means low-profile coolers; for more powerful CPUs a 240/280 mm liquid cooler on top is more suitable.

Fractal Design
Fans—2 × Aspect 12 PWM installed at the bottom; mounts for 2 × 120/140 mm on top and 2 × 120 mm at the bottom Fractal Design
Storage—4 × 2.5-inch drive mounts

There is no 3.5-inch hard drive support.

Fractal Design
Front I/O—2 × USB-A (5 Gbps); 1 × USB-C (20 Gbps); combo audio/mic jack; illuminated power button

The 20 Gbps USB-C runs at full speed only if the motherboard has a USB 3.2 Gen 2x2 header.

Fractal Design
Materials—Anodised aluminium exterior and side panels; FSC-certified walnut top panel; bottom dust filter Fractal Design
Size and weight—366 × 165 × 314 mm; 4.6 kg net Fractal Design
Colours and warranty—Silver, Midnight Blue and Charcoal Gray; 2-year warranty Fractal Design