Micro-ATX Case
Motherboard Compatibility: Micro-ATX, Mini-ITX
Supports Rear-Connecting Motherboards (BTF, Project Zero) : Yes (Micro-ATX)
Materials : SGCC steel, clear tempered glass (white), tinted tempered glass (black)
Front I/O Ports
USB 3.2 Type-A (x1)
USB 3.2 Gen2x2 Type-C (x1)
Fan Support
Front : 2 x 120 mm / 2 x 140 mm
Top : 2 x 120 mm / 2 x 140 mm
Bottom : 2 x 120 mm
Rear : 1 x 120 mm (1 x F120Q (CV) included)
Radiator Support
Front : Up to 280 mm
Top : Up to 240 mm
Clearance
CPU Cooler Height : 170 mm
GPU Length : Up to 377 mm (without front fans) Up to 352 mm (with front fans) Up to 317 mm (with front radiator and fans)
PSU Length : Up to 185 mm
Cable Routing Space : Up to 31.5 mm
Front Radiator + Fan Thickness : Up to 63 mm
Top Radiator + Fan Thickness : Up to 70 mm
More information can be found on manufactures website - https://nzxt.com/en-intl/products/h3-flow

