Corsair FRAME 4000X RS / NZXT H2 Flow (2026)

Corsair FRAME 4000X RS: CC-9011302-WW · black · standard RS120 fans

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

SpecificationCorsair FRAME 4000X RSNZXT H2 Flow (2026)
Release year20262026
Announcement and availability7 April 2026; immediately available at announcement Corsair—
Case typeMid-tower; steel, tempered glass, plastic Corsair—
Motherboard supportMini-ITX, Micro-ATX, ATX; E-ATX up to 305 × 277 mm Corsair—
Back-connect motherboard supportSupported Corsair—
Graphics card clearance405 mm with 25 mm front fans; nominal 430 mm without front fans CorsairUp to 331 mm long, 65 mm thick and 150 mm wide NZXT
CPU cooler heightUp to 170 mm Corsair—
Power supplyATX; up to 220 mm long CorsairSFX / SFX-L; up to 130 mm long

Not designed for an ATX power supply.

NZXT
Included fans4 × RS120 PWM; unlit CorsairTop: 2 × 120 mm F120Q Case Version exhaust fans; 3-pin DC

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

NZXT
Front panelRGB Flow; 64 LEDs; 5 V ARGB Corsair—
Front I/O20 Gbit/s USB-C; 2 × 5 Gbit/s USB-A; combined headphone/microphone Corsair—
ControlsPower button; no reset switch or drive activity LED Corsair—
Front/top fan railsFront fans up to 200 mm; top fans up to 140 mm Corsair—
Radiator mountsFront/top/side: 240, 280 or 360 mm; rear: 120 or 140 mm Corsair—
SATA drive bracket2 × 2.5-inch SSDs or 1 × 3.5-inch HDD Corsair—
Cable clearance37 mm behind the motherboard Corsair—
Dust filtersFront, side and bottom Corsair—
Vertical GPU mountingRotatable PCIe bracket; riser cable separate Corsair—
iCUE LINK lightingSeparate RGB adapter, compatible LINK hub and iCUE 5 required

Motherboard ARGB software is a separate control option.

Corsair
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Model year—2026 NZXT
Dimensions and volume—435 × 181 × 263 mm (height × width × depth); 20.7 L NZXT
Weight—4.55 kg; empty case NZXT
Construction—Steel; hybrid tempered-glass and mesh side panel NZXT
Motherboard—Mini-ITX; no back-connect motherboard support NZXT
Combined GPU and radiator fit—Front AIO tube covers, fittings and cables can reduce available GPU width

Being shorter than 331 mm does not alone guarantee compatibility.

NZXT
CPU air cooler—75 mm maximum height

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

NZXT
Front radiator—Up to 280 mm; combined radiator and fan thickness up to 60 mm NZXT
Fan mounts—Front: 2 × 120 or 2 × 140 mm; top: 2 × 120 mm NZXT
Front connections—2 × USB 3.2 Type-A; 1 × USB-C 3.2 Gen 2×2; headset jack NZXT
Drive bays—2 × 2.5-inch, up to 8.5 mm thick; no 3.5-inch bays NZXT
Expansion and riser—3 vertical slots; included 260 mm PCIe 5.0 ×16 riser

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

NZXT